Ronald Davis in 1963. Photo by Steve Sokol. Image courtesy of Ronald Davis

Ronald Davis's studio at Pico Boulevard and 4th Avenue in Los Angeles, 1966–72. Photo by Bob Jaye. Courtesy of Ronald Davis

Interior view of Ronald Davis's studio at Pico Boulevard and 4th Avenue in Los Angeles, 1966–72. Photo by Bob Jaye. Courtesy of Ronald Davis

View of Market Street in Venice, California, in 1970, showing the studio buildings of Larry Bell (right) and Robert Irwin (left). Photo by Larry Bell. Courtesy of and © Larry Bell

Simon Rodia's Towers (Watts Towers) in Los Angeles, 1967. The Getty Research Institute, Julius Shulman Photography Archive, 2004.R.10. Used with permission

Richard Diebenkorn in his studio at Main Street and Ashland Avenue in Santa Monica, ca. 1970–71. Photo by Richard Grant. Courtesy of the Richard Diebenkorn Foundation and Richard Grant

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

David Hockney, ca. 1974

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

Announcement for Dead Man performance by Chris Burden at the Mizuno Gallery in Los Angeles, November 12, 1972. © Chris Burden. The Getty Research Institute, Gift of Riko Mizuno, 2010.M.84.4

Announcement for “Earful,” a Tap City Circus raffle in Los Angeles, February 20, 1972. Designed by George Herms. Letterpress, woodblock, and rubber stamping. The Getty Research Institute, Gift of George Herms, 2009.M.20.25. © J. Paul Getty Trust

George Herms at “Earful,” a Tap City Circus raffle in Los Angeles, 1972. The Getty Research Institute, Gift of George Herms, 2009.M.20.24. Photo by and © Jerry Maybrook

Letter and brochure for Al's Grand Hotel, May 2, 1971, designed by Allen Ruppersberg. Offset lithograph brochure, typed letter (signed). © Allen Ruppersberg. The Getty Research Institute, Gift of Michael Asher, 2009.M.30.2

Heavy Industry Publications advertising books by Ed Ruscha, ca. 1968. Offset lithograph. © Ed Ruscha. The Getty Research Institute, Gift of Michael Asher, 2009.M.30.1

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