A resin painting by Ed Moses in an exhibition at Billy Al Bengston’s Artist Studio, 1970. © Ed Moses. Photo by Billy Al Bengston. Image courtesy of and © Billy Al Bengston Art

Ed Ruscha's studio at 1024 3/4 N. Western Avenue in Hollywood, California, 1970. Photo by Larry Bell. Image courtesy of Billy Al Bengston

Announcement for Judy Chicago exhibition at California State University, Fullerton, October 23– November 25, 1970. The Getty Research Institute, Gift of Rolf G. Nelson, 2010.M.38.5. Image courtesy of Jerry McMillan and Craig Krull Gallery, Santa Monica. © Jerry McMillan.

Billy Al Bengston on a his BSA Victor motorcycle in the Ballona Wetlands, Marina del Rey, California, 1966. Image courtesy of and © Billy Al Bengston

Billy Al Bengston’s studio at Clark Street and Santa Monica Boulevard in Los Angeles, 1957. Image courtesy of and © Billy Al Bengston

Andrew Perchuk of the Getty Research Institute conducting an oral history interview with Karl Benjamin in 2010. © J. Paul Getty Trust

Modern dancer with paintings by Lorser Feitelson, 1949. Image courtesy of Feitelson Arts Foundation and Louis Stern Fine Arts. © Feitelson Arts Foundation

Ed Moses, ca. 1966. Image courtesy of Ed Moses. Photo by John Waggaman

Announcement for ASCO and Los Four exhibition at Point Gallery in Santa Monica, California, 1975. Offset lithograph. The Getty Research Institute, Gift of George Herms, 2009.M.20.4. Courtesy of ASCO and Los Four

Announcement for the inaugural exhibition Recent Work by Masami Teraoka at Space Gallery in Los Angeles, 1975–76. © Masami Teraoka. The Getty Research Institute, Gift of George Herms, 2009.M.20.5

Poster for Ed Moses exhibition at Mizuno Gallery in Los Angeles, 1969. Courtesy Mizuno Gallery. The Getty Research Institute, Gift of Michael Asher , 2009.M.30

Poster for Richard Pettibone exhibition Wanted: $2000 Reward at Ferus Gallery in Los Angeles, 1966. Courtesy of the artist. Offset lithograph mounted on board. The Getty Research Institute, Gift of Irving Blum, 2009.M.37.2

Magical Space Forms, 1948, Lorser Feitelson. Oil on board. 30 x 39 ¾ in. Collection of Bunty and Tom Armstrong, New York. © Feitelson Arts Foundation, courtesy Louis Stern Fine Arts. © Photography by Gerard Vuilleumier

Norman Zammitt executing his painting North Wall, 1976. Acrylic on canvas. 96 x 168 in. Collection of Leon Gazarian & Monique Powell. © Norman Zammitt Estate

Ocean Park No. 26, 1970, Richard Diebenkorn. Oil on canvas. 89 x 81 in. Nerman Family Collection. © The Estate of Richard Diebenkorn, Catalogue Raisonné #2415