Wallace Berman with his collage Papa's Got a Brand New Bag in 1965. Art © the Estate of Wallace Berman and Michael Kohn Gallery, Los Angeles. Image courtesy of Marvin Silver and Craig Krull Gallery, Santa Monica. © Marvin Silver

Wallace Berman in 1969. Image courtesy of Malcolm Lubliner and Craig Krull Gallery, Santa Monica. © Malcolm Lubliner

Nicholas Wilder and Ken Tyler in 1968. Image courtesy of Malcolm Lubliner and Craig Krull Gallery, Santa Monica. © Malcolm Lubliner

Frank Gehry, Babs Altoon, Billy Al Bengston, Larry Bell, John Altoon, and Tony Berlant at Culture Day at LACMA (L.A. County Museum of Art), 1968. Photo by and © Julian Wasser. Courtesy of Julian Wasser, Craig Krull Gallery, Santa Monica, and Museum Associates/LACMA

George Herms in 1960. Photo by Edmund Teske. Courtesy of and © 1960 Edmund Teske Archives, Laurence Bump and Nils Vidstrand

Wallace Berman and the LAPD vice squad at Ferus Gallery, 1957. The Getty Research Institute, Charles Brittin papers, 2005.M.11.8. © J. Paul Getty Trust. Photo by Charles Brittin

George Herms in the Silver Lake neighborhood of Los Angeles, 1960. Photo by Edmund Teske. Courtesy of and © 1960 Edmund Teske Archives, Laurence Bump and Nils Vidstrand

Robert Graham in the 1960s. Image courtesy of the Robert Graham Estate

ASCO and Los Four opening reception at the Point Gallery in Los Angeles, 1975. ©1975, Harry Gamboa, Jr.

Bruce Conner (in tub), Toni Basil, Teri Garr, and Ann Marshall, 1965. Photo by Dennis Hopper. Courtesy of and © The Dennis Hopper Trust

David Hockney, ca. 1974

Arthur Richer and Wallace Berman at Syndell Studio in Los Angeles, 1957. Richer’s art is in the background. The Getty Research Institute, Charles Brittin papers, 2005.M.11.16. © J. Paul Getty Trust. Image courtesy of Lauri Richer. Photo by Charles Brittin

Hard Edge group exhibition with works by Ronald Davis and Judy Chicago at Rolf Nelson Gallery in Los Angeles, May 1964. The Getty Research Institute, Gift of Rolf G. Nelson, 2010.M.38.2

Announcement for the exhibition Come and See at the Rolf Nelson Gallery in Los Angeles, June 14–July 23, 1965. The Getty Research Institute, Gift of Rolf G. Nelson, 2010.M.38.1

Announcement for Jack Goldstein exhibition at the Mizuno Gallery in Los Angeles, November 1972. © Jack Goldstein Estate. The Getty Research Institute, Gift of Riko Mizuno, 2010.M.84.1