Archive for the 'Conservation' Category

Behind the Scenes: Installing Senga Nengudi’s “Water Composition I”

Influenced by Black cultural traditions and Japanese Gutai, artist Senga Nengudi’s work synthesizes multiple ideas circulating in the 1960s and 1970s: feminist practice, the role of materiality, and the relationship between activation, viewership, and performance. In her sculpture Water Composition I, currently on view in Slip Zone, Nengudi encloses colored water in plastic, creating a body-like form.

Senga Nengudi, Water Composition I, 1969-1970/2019, heat-sealed vinyl and colored water, TWO x TWO for AIDS and Art Fund

We asked Senior Preparator and IPM Coordinator Mary Nicolett what stood out to her about her experience installing this abstract work. Here’s what she had to say:

First priority upon being approached to work with Fran Baas, Interim Chief Conservator, on the Nengudi was sourcing two 2-gallon jugs for filling the piece. 

Once that had been done, we set about opening the contents of the packing tube. There I found a beautiful rope, tubing and funnels, pre-filled dye containers with pre-measured amounts, and of course the plastic “bags.” Also included, and very important, was the template for placement! We were able to figure out exactly where on the platform the piece would go, and it detailed the exact pinpointed location of each PVC bag including position of the heat-sealed-seam. 

It took a while to truly understand the tubing and funnel system. What I wasn’t prepared for was how exquisitely this PVC bags where packed, in order of installation, one by one. Preparators often wish for things to be packed better, but this was a thing of beauty! 

Fran and I set about the morning hooking the tubes into each bag and filling with the prescribed amount of dye mixed with the prescribed ionized distilled water. It was “slow and steady wins the race” and we did not spill a drop! Each funnel was marked with tape on the wall, as to which bag the tube went to, just to avoid any possible confusion. 

After all the bags were filled, Fran and I began removing bubbles in the bags by gently thumping each bag until the bubbles moved to the top. 

A bit of tape removal, sweeping, touch-up paint, and we were done! And it looks marvelous!

Come see this work for yourself in the free exhibition Slip Zone: A New Look at Postwar Abstraction in the Americas and East Asia, on view now through July 10, 2022.

Mary Nicolett is the Senior Preparator and IPM Coordinator at the DMA.

Stretching Ed Clark’s “Intarsia”

Ed Clark is an American abstract expressionist and pivotal Black artist in the DMA’s collection who experimented with shaped canvases. His large-scale painting Intarsia is on view for free in the exhibition Slip Zone: A New Look at Postwar Abstraction in the Americas and East Asia. To create this work, he laid raw canvas on the floor, poured acrylic paint directly on the surface, and spread it across the canvas with a push broom in a performative process. The title of this painting refers to a knitting and metalworking technique used to create fields of different colors that appear to blend in and out of one another. Combined with the elliptical shape of the canvas, which Clark saw as evocative of the shape of an eye, the radiant colors give the overwhelming sense of an expanding, pulsating image. Find out how our team of art conservators and preparators worked to preserve this work’s thick layers of paint by stretching the canvas before displaying it.

From Laura Hartman, Paintings Conservator at the DMA:

It was a true team effort—the painting measures over 5 meters by 3.5 meters, and weighs over 200 pounds! This painting is unique in that the artist has applied so many layers of paint that the paint is in fact thicker than the canvas, which changes the entire physics of the work. It has also traditionally been shown pinned directly to the wall, which was possible in 1970 when it was painted, but now the work has aged and needs a new approach to ensure longevity.

We worked directly with a stretcher maker in New York to design a stretcher that would hold the weight of the piece while remaining thin, giving the appearance that the work is pinned to the wall.

I worked with our preparators to create edge extensions, or a strip lining, and attach these to the back of the work to be able to stretch it while retaining the illusion of pinning. We first stretched a loose lining, which is a giant piece of canvas that acts as an additional support, and then carefully stretched the work onto the prepared stretcher, slowly increasing tension over several days to allow the paint to relax and release into a comfortable position. The work is now secure for the long haul, while retaining the artist’s original intention.

It took a lot of hands but we got it done! It takes at least 8 people to safely move the work, so all hands were on deck for this one!

Behind the Scenes: Treatment of an Early Work by Henry Ossawa Tanner

Henry Ossawa Tanner’s paintings in the conservation studio

The Dallas Museum of Art and Art Bridges Foundation partnered in early January of this year to undertake the conservation treatment and technical study of Art Bridge’s newly acquired masterpiece The Thankful Poor by Henry Ossawa Tanner. Additionally, the project will allow for the first public presentation of the work, curated by Sue Canterbury at the DMA.

Before conservation treatment: Henry Ossawa Tanner, The Thankful Poor, 1894, oil on canvas, Owned by Art Bridges Foundation

When The Thankful Poor arrived at the DMA’s conservation studio, it was already strikingly beautiful. The composition holds space and immediately draws the viewer in. The painting is double-sided, presenting an unfinished version of The Young Sabot Maker on the reverse, a composition Tanner would complete the following year and which now resides in the Nelson-Atkins Museum of Art’s collection.

The Young Sabot Maker on the back of The Thankful Poor

Prior to any conservation treatment, a thorough examination is always undertaken, including archival documentation research relating to any previous interventions. It became apparent that the work had undergone at least one relatively minor restoration campaign in the 1970s. It was also evident that the painting was cleaned and re-varnished in a second treatment, though no verifiable documentation was found. UV illumination was used to better understand which varnishes and treatment materials might have been used, as surface materials such as varnishes and areas of retouching can be differentiated based on their observed fluorescence. In this painting, the varnish is seen glowing green, and older areas of restoration present as black spots.

Here, the front of the work is illuminated with UV light. The streaky green appearance is the fluorescence exhibited by the surface varnish, and the black spots are areas of older restoration.

As both of these treatments took place many years earlier, the varnish layers had become discolored, both yellowed and cloudy. An old tear that had been repaired using wax and paper had also begun to open and needed to be addressed. Finally, a thick layer of discolored adhesive was scattered throughout the composition on the reverse of the canvas.

Left: A tear before treatment. Right: First image showing tear before treatment; detail showing adhesive residues on reverse of canvas.

Tanner was an innovative artist, known to experiment with layering techniques that require especially mindful cleaning approaches. Cleaning tests were conducted under microscopic magnification to determine a cleaning protocol to remove the layers of discolored varnish. To better understand the boundary between paint and varnish, a microscopic sample was used to gain a view of the various layers. The resulting cleaning process was executed almost entirely under the microscope to ensure the most delicate layers were preserved.

Layers seen in a photomicrograph of a cross-sectional sample at 20X magnification

The tear was then mended and areas of losses were filled and retouched using reversible conservation materials. Wide cracks, known as traction cracks, were carefully retouched to better integrate the surface visually.

Left: Detail of areas of traction cracking before treatment. Right: Same detail after treatment.

The cleaning was transformative. The layers of discolored varnish lifted to reveal a colorful palette previously unseen. The overall tone of the painting shifted to unveil a much cooler composition, balancing the contrast.

It was an honor to work on this beautiful painting. Results from the treatment allow the work to be appreciated as the artist intended. Tanner was a master of tone and light, both of which he captured so beautifully in this magnificent composition. Research and treatment work were done collaboratively with my fabulous curatorial colleagues, both at the DMA and at Art Bridges, and I want to give a heartfelt acknowledgment to Sue Canterbury, Martha MacLeod, and Margi Conrads for their collaboration.

Reverse of painting before (left) and after treatment (right)
Front of painting before (left) and after treatment (right).

Laura Eva Hartman is the Paintings Conservator at the DMA.

Conserving Kahlo

The Dallas Museum of Art was given the opportunity to exhibit a collection of exceptional Frida Kahlo works. In preparation for their display on February 28, 2021, three of the paintings were studied in the paintings conservation studio, including Still Life with Parrot and Flag from 1951, Sun and Life from 1947, and Diego and Frida 1929–1944 from 1944. Using infrared photography, X-radiography, and microscopic examination, novel information was brought to light regarding each work.

Frida Kahlo, Diego and Frida 1929–1944, 1944, oil on Masonite with original painted shell frame, Private Collection, Courtesy Galería Arvil. © 2021 Banco de México Diego Rivera Frida Kahlo Museums Trust, Mexico, D.F. / Artists Rights Society (ARS), New York
Frida Kahlo, Sun and Life, 1947, oil on Masonite, Private Collection, Courtesy Galería Arvil. © 2021 Banco de México Diego Rivera Frida Kahlo Museums Trust, Mexico, D.F. / Artists Rights Society (ARS), New York
Frida Kahlo, Still Life with Parrot and Flag, 1951, oil on Masonite, Private Collection, Courtesy Galería Arvil. © 2021 Banco de México Diego Rivera Frida Kahlo Museums Trust, Mexico, D.F. / Artists Rights Society (ARS), New York

Infrared photography allows conservators to look through surface level paint to the underlying preparatory layers. X-radiography, on the other hand, allows us to visualize compositional changes made in paint. This type of imaging provided a fascinating perspective into Frida Kahlo’s working practice.

In Still Life with Parrot and Flag, an initial planning drawing done in both thin lines and wide ink strokes shows how Kahlo simplified compositional elements in the final painting, especially with regards to shifting the size and shape of the fruits. The most labored part of the underdrawing shows several adjustments made to the parrot’s wing and beak, and changes made to the adjacent mango. The blue lines overlayed onto the visible light photograph represent a tracing made from the IR photograph of the most prominent changes Kahlo made to this initial underdrawing. The underdrawing observed in each painting made clear that Kahlo had a strong vision for the overall composition of each work, regardless of the subtle changes made in the painting process.

Infrared photograph of Still Life with Parrot and Flag
Tracing of drawing lines overlaid onto visible light photograph

IR photography also revealed a small inscription on one of the shells attached to the frame on Diego and Frida. This inscription reads “Recuerdo de Veracruz” and was subsequently covered up by red paint, probably by Frida herself. Frames like this one would have likely been found in the tourist market of Veracruz; here, it is a special hidden detail giving us an intimate glimpse into the past life of the object.

An inscription on one of the shells on the right originally read “Recuerdo de Veracruz”

The X-ray taken of Sun and Life revealed an exciting evolution observed in the painting: although Kahlo’s basic composition was generally set from the underdrawing to the early painting phase, the details evolved significantly in later phases of painting. The plant pods surrounding the sun, for example, largely began closed but opened gradually during the painting process. Another interesting discovery was the fetus-like element directly behind the sun that emerged as Frida finalized the painting, in contrast to the X-ray that reveals a closed pod. The blue lines overlaid onto the visible light image of the painting represent a tracing made from the X-ray and indicate where compositional changes took place during the painting process.

X-radiograph of Sun and Life
Tracing compositional changes observed in x-radiograph

Kahlo’s brushwork is stunning, utilizing a vast array of application techniques and styles to create movement and texture in each work. In Still Life with Parrot and Flag, her use of small rapid, brushstrokes achieves a composition of intricately varied textures and color, while long, sinuous strokes are used predominantly in Sun and Life. Frida and Diego takes a more direct painting technique of highly textured paint applied in short, tiny strokes. It is interesting to note that in two of the paintings, impressions of Frida’s fingerprints are visible in the paint—a subtle hallmark that humanizes the work.

Varied painting techniques shown in close-ups of her works

Artist’s fingerprints in Frida and Diego
Same detail under 10x magnification
Artist’s fingerprints in Still Life with Parrot and Flag

It was a privilege to examine these great works together with Dr. Mark A. Castro and Dr. Agustín Arteaga. I hope you enjoy this special moment to see the works together.

Laura Eva Hartman is the Paintings Conservator at the DMA.

All Bow Before the Bow

Interim Chief Conservator Fran Baas with Albert-Ernest Carrier-Belleuse’s L’Alsace

As the checklist was being developed for the recent reinstallation of the European Art Galleries, curator Dr. Nicole Myers consulted with the Objects Conservation Team about the DMA’s terracotta bust L’Alsace by French sculptor Albert-Ernest Carrier-Belleuse. This mid-19th-century sculpture had not been featured in our permanent collection galleries in over 10 years, and the re-envisioned gallery design, featuring recent bequests and a more in-depth narrative of European art history, was just the opportunity to review some of our holdings. When we assessed the sculpture’s condition, we agreed on a few issues that needed to be addressed prior to display. Though structurally sound, this sculpture needed some attention to increase the aesthetic legibility. The curatorial-conservation collaboration is an insightful joint investigation as both subject matter experts work together to best present a work of art to the public.

Albert-Ernest Carrier-Belleuse, L’Alsace, before 1883, terracotta, Dallas Museum of Art, gift of Dr. and Mrs. Edmund Pillsbury, Fort Worth, in honor of the opening of the new Dallas Museum of Art, 1983.153

This captivating terracotta sculpture is a symbolic representation of an idealized young woman of the Alsace region—a politically charged cultural and historic area because governance passed back and forth between France and Germany from the Thirty Years’ War to World War II. Though it is unclear exactly when in the 19th century this bust was created, the Alsatian culture is a unique mix of French and German influences.

The subject’s elaborate hairstyle (crimped bangs and two long braids, also called “plaits” in the 19th century), a section of an embroidered traditional dirndl apron dress, and bunches of flowers at her chest and in her hair are all visual cues to amplify the allegory of femininity and nationality. In the mid-19th century, the societal fashion across the European countries celebrated elaborate and rather complicated hair, and even for a time, these crimped bangs. A woman’s crowning glory was her hair. Keep in mind, hairstyle codes for women differed with age and even marital status. And, in this sculpture, we also get a snapshot of the region.

Charles Spindler, cover of Léon Boll’s “Wines and Coteaux d’Alsace” brochure, 1900

To both increase the legibility of and focus the viewer on the sculpture’s attributes (both in subject matter and material appreciation), the goals were to give it a general cleaning and to minimize stains and discolored old repairs. The minor oily grime discolorations seen around the high-touch areas, such as the underarm area, were reduced mechanically with vinyl erasers. The deep interstices in the terracotta had accumulated layers of dust, darkening the recesses even further. Dust and some minor spots of mold were carefully removed with a selection of tools (soft brushes, swabs, and a HEPA vacuum with micro-attachments).

Notice the minor oily grime discoloration around high-touch areas, such as this underarm area, before conservation.
Before and after reducing discolorations mechanically with vinyl erasers

Unifying the appearance of a previous restoration (a large patched hole on the back of the sculpture) with the surrounding areas was the most time-consuming part of the treatment. This old restoration was still structurally stable but drew unnecessary attention because the old fill materials used did not match the terracotta. So, the areas were toned back with reversible conservation paints.

The old restoration fills did not match the original terracotta.
Fran Baas treating the sculpture
Before and after treatment

She is now on view, under an acrylic case for protection from dust and grimy hands, with each side visible and offering something interesting for the viewer. Please find this work in our virtual gallery and spend time appreciating its craftsmanship and how the terracotta clay was manipulated by the artist before firing. You can see the artist’s fingerprints in the flower petals at her chest, revealing the creative spontaneity during the working process. Notice her exquisite outfit depicting her regional identity but especially appreciate that large bow. She’s gorgeous—even more so now that she’s been cleaned and restored!

Notice the details in the flowers, including the artist’s fingerprints in the flower petals.

Fran Baas is the Interim Chief Conservator at the DMA.

Preserving 100-Year-Old Plastic: Naum Gabo’s “Constructed Head No. 2”

The plastic sculpture is deteriorating, so slowly you can’t tell, but actively and unavoidably. For two years now, Elena Torok, Assistant Objects Conservator at the DMA, has been researching the repair history and material composition of Constructed Head No. 2 by Naum Gabo (1890–1977), in preparation for a conservation treatment this past spring. The sculpture is now free to see in the European Art Galleries.

Naum Gabo, Constructed Head No. 2, 1923–24, based on an original design of 1916, Ivory Rhodoid, Dallas Museum of Art, Edward S. Marcus Memorial Fund, 1981.35, © Nina Williams, England

Naum Gabo was a Russian avant-garde artist who worked with some of the some earliest forms of plastic in the 1920s, 30s, and 40s. Plastic was just becoming commercially available, and Constructivists like Gabo were interested in using new materials to merge art and daily life.

Over his lifetime, Gabo made seven versions of Constructed Head No. 2. They are all similar in design—a geometric bust of a woman made of many combined pieces—but they vary in size and medium. The earliest version was made from painted galvanized iron in 1916, and the latest, in the Nasher Sculpture Center’s collection, was made from stainless steel in 1975. The version in the DMA’s collection, dated 1923–1924, is made from Ivory Rhodoid (a trade name for an early cellulose ester). It is the only version Gabo made in plastic.

Plastic artworks are tricky for museums to preserve. There are many types of plastics, and the materials, still relatively new to the history of art, don’t all age well. Depending on type, they may start to bend, change color, or even break down entirely. Gabo’s early plastic works are known for their sensitivity. A sculpture acquired by the Philadelphia Museum of Art notoriously degraded to the point of being unable to be shown again.

Assistant Objects Conservator Elena Torok with Naum Gabo’s Constructed Head No. 2.

How has the DMA’s sculpture escaped that fate? Torok’s research indicates it has something to do with the color. More specifically, she has identified white pigments in Constructed Head No. 2 that appear to slow the deterioration of this particular plastic. Although the sculpture has discolored slightly and the left shoulder has started to bend and deform, it is still in great condition, especially compared to many other plastic works Gabo made during the same time period.

By 2017 what had not aged so well were materials used in older repairs. Constructed Head No. 2 was repaired at least three times before it was acquired by the DMA in 1981, and some of the glues used had started to yellow and darken (a common occurrence with certain adhesives as they age). This change was not only visually problematic, but also structurally worrisome; as glues discolor, their breakdown can eventually cause older repairs to lose their strength. As a result, this important work in the Museum’s collection has not been displayed in recent years.

Torok treats Naum Gabo’s Constructed Head No. 2.

Torok thoroughly researched the sculpture’s repair history before determining a conservation treatment plan. Earlier this year, she carefully removed the old, discolored adhesive and replaced it with new adhesive that is long-lasting and, most importantly, reversible, meaning it can be removed and replaced if necessary in the future. In August the sculpture went back on display for the first time in five years.

Constructed Head No. 2 is almost 100 years old now. The sculpture is too fragile to leave the DMA, it can’t be displayed too long due to light sensitivities, and it has to be shown in a special perforated case to allow for air exchange. As it slowly breaks down, the plastic releases distinct-smelling chemicals that can actually speed the aging of the sculpture if allowed to remain enclosed in close contact with it over time. Museums continue to acquire works made with plastic, and conservators continue to research the material and fight science with science in order to keep works on view (and intact) as long as possible.

Lillian Michel is the Marketing and Communications Coordinator at the Dallas Museum of Art.

Examining “Landscape with Saint Jerome”

Landscape with Saint Jerome by Herri met de Bles after conservation treatment

Landscape with Saint Jerome, a fantastical landscape by Herri met de Bles, is hanging in the newly reinstalled European art galleries after years in storage. Before it could be displayed, the 16th-century painting required careful conservation treatment in the DMA’s Paintings Conservation Studio. Treatment revealed a remarkably complex scene, with many tiny figures, hidden creatures, and microscopic details.

Little is known of Herri met de Bles, who was born around 1510 and died after 1550. Regardless of his life being shrouded in mystery, Bles was an important Flemish Mannerist landscape painter, known for knitting together realistic landscape scenes with fantastic imaginary elements. In Italy, where his art was popular, Bles was known as “Civetta” (“owl” in Italian), because he liked to paint little owls into his works, acting as a sort of playfully hidden signature. If you look closely in the tree behind St. Jerome, you will see the beak and eyes of a tiny owl peeking through a tree hollow.

Landscape with Saint Jerome before treatment

Landscape with Saint Jerome, although striking, arrived at the conservation studio in need of treatment. Bles applied colorful, thin layers of paint over a prepared wooden support. The wood warped over time, causing cracks in the support and paint simultaneously. A darkened varnish further obscured the beautiful and precise details. Paint applied in a previous restoration campaign, which was likely undertaken in the late 19th or early 20th centuries, had also discolored, creating dissonance in the surface of the work and obscuring the overall harmony evoked by the artist in the landscape.

The painting was examined using various techniques—including microscopes, ultraviolet light radiation, infrared reflectography (IR), and x-radiography—to gain insight into the condition of the work and the artist’s techniques. Armed with this information, treatment began in preparation for the reinstallation of the European Galleries.

Landscape with Saint Jerome during treatment

First, the dark and discolored varnish and areas of overpaint were removed. Cleaning revealed a world of detail previously unknown. Photomicrographs show details hardly perceptible without the aid of a microscope. Tiny creatures emerged in the wooded forest scene to the right of the central figure and in the mountains to the left, including a bear and cub family, stags, tiny figures hiking with a dog, and mountain goats. St. Jerome centers the composition and is accompanied by precisely painted attributes, including the skull and lion. He is surrounded by tiny, lively creatures such as squirrels, snails, lizards, mushrooms, and frogs. Bles also renders architectural features beautifully and goes so far as to depict not only microscopic decorative sculpture and architectural features but also decorative friezes noticeable only with magnification.

The IR images revealed especially interesting technical information. An elaborate underdrawing emerged when IR images were captured. Carbon-based materials absorb the infrared radiation and will appear black in IR images, while other materials that do not absorb the radiation will look transparent. Using this technique, underdrawing materials that contain carbon such as black inks, charcoal, and other carbon-containing black pigments become visible underneath overlying paint layers. Transfer marks, appearing as tiny black dots, were visible throughout the underdrawing, suggesting the use of prepared cartoon drawings. More free underdrawing was also observed, and can also be seen in the detail image. This type of underdrawing has been observed in other paintings attributed to Bles and serves as a fingerprint, in a way, of his working method.

After years of being stored away, this gorgeous painting by a mysterious artist is now on view for visitors to explore as part of free general admission. The landscape’s abundance of details will reward close looking, and the work serves as a dynamic addition to the newly reinstalled European Galleries.

Laura Hartman is the Associate Conservator at the DMA.

UPDATE: This post was originally written with the artwork title Saint Jerome in the Wilderness. As of May 15, 2020, our curators have identified this work’s title as Landscape with Saint Jerome.

Image: Herri met de Bles, Landscape with Saint Jerome, about 1540, oil on panel, Dallas Museum of Art, The Karl and Esther Hoblitzelle Collection, gift of the Hoblitzelle Foundation, 1987.21

Some Assembly Required

Have you ever wandered through the galleries at the DMA and thought to yourself, “Hmm, I wonder how they got this huge sculpture up those steps?” or “Wow! I bet it was really hard to hang that giant painting!” If you have, this post is for you! In one of the DMA’s newest installations, Women + Design: New Works, there are several pieces that required significant effort on the part of the DMA’s Collections team to install. Check out these behind-the-scenes photos and fun facts from the installation process, and visit the Museum to see these works in person—and for FREE—now through Sunday, February 17, 2019, in the Mary Noel and Bill Lamont Gallery.

Iris 3Objects Conservator Fran Baas adjusts the laser-cut polyester lace on Iris van Herpen’s Voltage Dress.

Najla 1A team of preparators works on lowering the two pieces of Najla El Zein’s Seduction onto the platform. Each piece of the sculpture weighs approximately 1,500 pounds and needs to be moved with a gantry crane. The lower stone was placed first, and then the upper stone had to be carefully lowered onto it.

Mobile 1Fran Baas, Lance Lander, and Mike Hill review the instructions for assembling Faye Toogood’s Tools for Life Mobile 2. Because the components of the mobile are heavy, the team had to know exactly what to do to minimize unnecessary handling.

Mobile 2Mike Hill and John Lendvay work to assemble Tools for Life Mobile 2 as it hangs from the ceiling.

DougDoug Velek takes measurements for the two pieces of jewelry by Katie Collins. Prior to installing the work, the preparators made the wedges and lifts used to display the jewelry in the exhibition. After confirming that the necklaces were centered on the wedge, preparators used pins to secure them in place.

SS and RSCurator Sarah Schleuning and preparator Russell Sublette discuss the placement of the three stools by Faye Toogood.

Katie Province is an Assistant Registrar for Collections and Exhibitions at the DMA.

Second Blooming

Alexander Calder’s Flower is back in the galleries after undergoing recent treatment in the Objects Conservation Lab. This mobile, a highlight of the collection, was given to the Museum in 1949, after it was commissioned for the Dallas Garden Club Flower Show by Mrs. Alex Camp and the Dallas Garden Club. The acquisition marked the beginning of the Museum’s contemporary art collection.

Fig03

An early photo of Flower from the DMA Archives.

In recent decades, Flower has not flowed or moved as Calder originally intended because of damage that occurred in 1979. While installed at the Museum’s former home in Fair Park, the mobile fell two stories and crashed to the ground after its hanging attachment failed. This caused loss of paint and some minor structural changes to the mobile’s elements. Because the piece is very carefully balanced in its construction, and weighs only four pounds overall, these slight deformations created noticeable alterations in how the mobile moved. Paint losses were addressed at the time, but all attempts to return the mobile to its original form were ultimately unsuccessful.

In preparation for Flower’s current display, DMA Associate Objects Conservator Fran Baas and I performed a conservation treatment this past fall. Our work enabled the mobile to move again in a way that more closely represents Calder’s original design. It also provided a unique opportunity to learn more about Flower’s history.

 

As we worked with DMA Archivist Hillary Bober to examine Calder’s original 1949 drawings and archival photographs of an early 1950s installation, subtle differences became clear. Most notably, one central metal hook was bent in an entirely different position than it had been. The changed areas were carefully manipulated back to their original positions to the extent that was safely possible. Although these repairs were very small, they created big changes in how the mobile moves overall.

Fig04

Flower on display after recent conservation treatment.

After many years, Flower finally hangs in a way that is much closer to what Calder intended. This beautiful floating sculpture is now on view in the Museum’s Concourse overlook on Level 3.

Elena Torok is the Assistant Objects Conservator at the DMA.

 

Artistic Equations

Mathematics and art, two subjects that are often thought of as an unlikely combination; however, for American artist Alfred Jensen these two subjects fit together exactly. One of Jensen’s geometric, mathematical paintings could be seen if you peeked into the Conservation Studioab this past fall. This painting may appear simple in design, but the process and the surface are very complicated and interesting. Jensen was fascinated by the Maya calendar, philosophy, mathematics, color theory, pre-Columbian culture, and Asian culture. All of these things influence the compositions he creates, and in this particular painting there is very likely a specific reason for the number and placement of each dot of paint throughout the work.

Jensen combines mathematical and philosophical theory with artistic practice in his works similar to the way the field of conservation combines science with art. This perfect comparison makes it all the more exciting to perform a conservation treatment on this painting. In this work, it appears that Jensen applied the paint straight from the tube by dotting it directly onto a primed canvas. The dots were clearly not added at random, but were planned out, as is evidenced by a grid applied in pencil that can be seen in the reserves between the dots, below the paint.

Due to the high impasto of each little dot of paint, little cups and horizontal platforms are created that are perfectly positioned for catching and gathering dust. The dust detracts from and changes the way the colors interact with each other, affecting the color theory aspect of Jensen’s technique. Additionally, since the surface is unvarnished, the dust has started to attach itself to the paint, which will make it increasingly difficult to remove in the future.

Removing the dust from the surface is no easy task. Each little dot of paint has pointed ends that are extremely fragile and sometimes very small and difficult to see without magnification. As the DMA’s conservation intern, I began cleaning this painting in September 2017. In the image below, I’m using an optivisor to be able to see the very tiny, vulnerable peaks of paint and a small, soft brush to carefully dust each daub of paint to reveal the intended color below without disturbing the peaks. A HEPA vacuum gathers the dust so it doesn’t settle back onto the paint below.

The removal of the dust is a very slow, careful process because each little dot essentially becomes its own painting, requiring individual attention. From the viewing window of the Conservation Studio, it may seem as if the painting has not changed very much; however, below you can see the difference between a cleaned (green) and uncleaned area (blue) of the painting. The area in the green square is no longer dull and gray, and the colors show their intended vibrancy. The cleaning, while slow and detailed, is a very satisfying process.

Caroline Hoover is the Conservation Intern at the DMA.


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