Ed Ruscha and Joe Goode on horseback. Exhibition catalogue cover for the Fine Arts Patrons of Newport Harbor at the Balboa Pavillion Gallery, 1968. Image courtesy of Jerry McMillan and Craig Krull Gallery, Santa Monica. © Jerry McMillan

Several Los Angeles artists at Culture Day at LACMA (L.A. County Museum of Art), 1968. Photo by and © Julian Wasser.

Helen Pashgian polishing one of her sculptures in the Baxter Art Gallery at the California Institute of Technology in Pasedena for an artists in residence exhibition, 1970. Courtesy of and © Helen Pashgian

“Artists Against Escalation” protest at LACMA (Los Angeles County Museum of Art), May 16, 1965. The Getty Research Institute, Charles Brittin papers, 2005.M.11.32. © J. Paul Getty Trust. Photo by Charles Brittin

Llyn Foulkes stands by his work Flanders (1960–62) at the opening of his solo exhibition at the Pasadena Art Museum, September 18, 1962. Image courtesy of and © Llyn Foulkes

Betty Asher and Henry Hopkins in front of Ed Ruscha's painting The Los Angeles County Museum on Fire (1965–68), ca. late 1960s. © Ed Ruscha. The Getty Research Institute, Betty Asher Papers, Gift of Michael Asher, 2009.M.30

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

Poster for the exhibition New Painting of Common Objects at the Pasadena Art Museum, 1962. Wood-type letterpress on paper. 42 3/8 x 28 in. Image courtesy of the Ed Ruscha Studio

Installation view of Craig Kauffman's solo exhibition at the Pasadena Art Museum, including works from Kauffman's Loops series, 1970. Photo by Frank J. Thomas. Courtesy of the Frank J. Thomas Archives

Installation view of Ken Price's sculptures in the exhibition New American Sculpture at the Pasadena Art Museum, February 11–March 7, 1964. Photo by Frank J. Thomas. Courtesy of the Frank J. Thomas Archives

Thomas Leavitt, Llyn Foulkes, and Walter Hopps at the opening of Foulkes's exhibition at the Pasadena Art Museum, September 18, 1962. Image courtesy of and © Llyn Foulkes

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

Abstract Classicists meet at Lorser Feitelson’s studio in Los Angeles, May 10, 1959

The Los Angeles County Museum on Fire, 1965–68, Ed Ruscha. Oil on canvas. 53 1/2 x 133 1/2 in. Hirshhorn Museum and Sculpture Garden, Smithsonian Institution, Washington, D.C., Gift of Joseph H. Hirshhorn, 1972. © Ed Ruscha. Photography by Lee Stalsworth

Poster for the exhibition New Painting of Common Objects at the Pasadena Art Museum, 1962. Wood-type letterpress on paper. 42 3/8 x 28 in. Image courtesy of the Ed Ruscha Studio