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

Ed Moses with his installation at Mizuno Gallery, 1970. Image courtesy of and © Billy Al Bengston

Morphe #11 (Cloud), 1974, Jo Ann Callis. Gelatin silver print. 6 x 8 7/8 in. Gift of Gay Block. © Jo Ann Callis

Morphe #6 (Islands), 1974, Jo Ann Callis. Gelatin silver print. 6 x 8 15/16 in. Gift of Gay Block. © Jo Ann Callis

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

Ocean Park No. 67, 1973, Richard Diebenkorn. Oil on canvas. 100 x 81 in. The Doris and Donald Fisher Collection. © The Estate of Richard Diebenkorn, Catalogue Raisonné #1482

Pam Beale, 1971, Allan McCollum. Dyed and bleached canvas with caulk. 103 x 103 in. Mildred Lane Kemper Art Museum, Washington University in St. Louis, Gift of Anne V. Champ, 1974. © Allan McCollum

Real Estate Opportunities, 1970, Ed Ruscha. Self-published book, offset lithograph. 7 1/16 x 5 5/8 x 3/16 in. Open to pages depicting 12th & Sentous (southeast corner), and 1140 E. Pico. The Getty Research Institute, 86-B19480. © Ed Ruscha

Red Concave Circle, 1970, De Wain Valentine. Cast polyester resin. 96 x 96 x 12 in. Bank of America Collection. © De Wain Valentine. Photo: Harry Drinkwater

Announcement for "Roofle," a Tap City Circus raffle in Los Angeles, October 30, 1966. Designed by George Herms. Letterpress, woodblock, and rubber stamping. The Getty Research Institute, Gift of Hal Glicksman, 2009.M.5.6

Torn Cloud Painting 73, 1972, Joe Goode. Oil on canvas. 72 x 96 in. Collection of Joe Goode & Hiromi Katayama. © Joe Goode

Untitled, 1970, Frederick Eversley. Three-color, three-layer cast polyester. 20 x 20 x 6 in. Collection of the artist. © Frederick Eversley

Untitled (Leaner), 1970, Peter Alexander. Polyester resin. 104 ½ x 5 ½ x 3 in. Collection of the artist. © Peter Alexander

Untitled photograph, from the series Stucco, 1973–76, Judy Fiskin. Gelatin silver print. 2 13/16 x 1 15/16 in. © Judy Fiskin