Slideshow: Gray Column moves from conservator Jack Brogan’s studio to the J. Paul Getty Museum, 2011. Artwork © De Wain Valentine

Slideshow: Documentation of De Wain Valentine‘s Circle series of polyester resin circles, 1960s. Artwork © De Wain Valentine. Photo © Harry Drinkwater

De Wain Valentine in his Venice studio. Photo: © Cathy Weiner

De Wain Valentine in his Venice studio with one of his eight-foot Circle polyester pieces, 1970s. Artwork © De Wain Valentine. Photo © Harry Drinkwater

De Wain Valentine polishing Gray Column in 1976. © De Wain Valentine. Photo courtesy of De Wain Valentine

De Wain Valentine in front of Gray Column, 1975–76, during the polishing stage. © De Wain Valentine. Photo courtesy of De Wain Valentine

John Mason and Peter Voulkos photographing a sculpture outside their shared studio on Glendale Boulevard in Los Angeles, ca. 1959. Courtesy of the Voulkos & Co. Catalogue Project

Peter Voulkos's exhibition at the Pasadena Art Museum, 1958. Courtesy of the Voulkos & Co. Catalogue Project

Peter Voulkos in his studio on Glendale Boulevard in Los Angeles, 1959. Image courtesy of the Voulkos & Co. Catalogue Project

Stephan von Huene with Tap Dancer (1967) in Düsseldorf, 1975. Image courtesy of and © Dr. Petra Kipphoff von Huene

Craig Kauffman in Billy Al Bengston's studio in the 1960s. Image courtesy of and © Billy Al Bengston

Frederick Eversley polishing one of his sculptures, 1970. Image courtesy of and © Frederick Eversley

Frederick Eversley in his studio, 1971. Photo by Frank J. Thomas. Courtesy of the artist and the Frank J. Thomas Archives

Henry Takemoto working on his glazed tile mural at Otis Art Institute in Los Angeles, 1959. Photo by John Mason. Image courtesy of Henry Takemoto

Henry Takemoto with one of his coiled glazed stoneware pots at the studio of John Mason and Peter Voulkos, Los Angeles, ca. 1959. Image courtesy of Henry Takemoto