Announcement for Doug Wheeler exhibition at Ace Gallery in Los Angeles , 1970. Printed plastic. © Doug Wheeler. The Getty Research Institute, Gift of George Herms, 2009.M.20.6

Announcement for George Herms exhibition Nativity '63 at Rolf Nelson gallery in Los Angeles, 1963. © George Herms. The Getty Research Institute, Gift of Michael Asher, 2009.M.30.9

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

Judy Gerowitz, also known as Judy Chicago, with her Sunset Squares installation at Rolf Nelson Gallery in Los Angeles, 1966. © 2011 Judy Chicago / Artists Rights Society (ARS), New York. The Getty Research Institute, Gift of Rolf G. Nelson, 2010.M.38. Image courtesy of Jerry McMillan and Craig Krull Gallery, Santa Monica. © Jerry McMillan

Poster for Craig Kauffman exhibition at Ferus Gallery in Los Angeles, 1962. © The Estate of Craig Kauffman. The Getty Research Institute, Gift of Michael Asher, 2009.M.30.16. Courtesy Frank Lloyd Gallery, Santa Monica, California

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

Announcement for Tom Wudl exhibition at Mizuno Gallery in Los Angeles, 1974. © Tom Wudl. The Getty Research Institute, Gift of Riko Mizuno, 2010.M.84.2

Announcement for the exhibition Grup Shrow at Mizuno Gallery in Los Angeles, 1972. © Riko Mizuno. The Getty Research Institute, Gift of Riko Mizuno, 2010.M.84.3

In Mourning and In Rage media performance at Los Angeles City Hall, December 13, 1977, Suzanne Lacy and Leslie Labowitz-Starus. Gelatin silver prints documenting the event by Susan Mogul. 7 15/16 x 10 3/16 in. The Getty Research Institute, Lawrence Alloway Papers, 2003.M.46. Photo courtesy of Susan Mogul

Inside and Out, 1964, Melvin Edwards. Welded steel. 12 x 8 3/4 x 5 3/4 in. Collection of Susan and David Lawrence. © Melvin Edwards

Juliet in Mud Mask, 1945, Man Ray. Gelatin silver print. 14 x 10 11/16 in. © Man Ray Trust ARS-ADAGP

L.A. Odyssey, 1969, Diane di Prima (poet), cover design by George Herms. Poets Press, San Francisco, 1969. Offset lithograph. 8 5/8 x 5 9/16 x 1/16 in. Book © Diane di Prima. The Getty Research Institute, Gift of George Herms, 2009.M.20.27. Cover image © George Herms

Little Big Horn, 1959, Peter Voulkos. Polychromed stoneware. 62 x 40 x 40 in. The Oakland Museum of California, gift of the Art Guild in memory of Helen Schilling Stelzner. © Mrs. Ann Voulkos, Voulkos Family Trust. Image courtesy of the Voulkos & Co. Catalogue Project. Photo by Joe Schopplein

Los Angeles, 1964, Garry Winogrand. Gelatin silver print. 9 x 13 7/16 in. © 1984 The Estate of Garry Winogrand

Los Angeles, 1971, Henry Wessel Jr. Gelatin silver on Dupont Veragam paper print. 7 15/16 x 11 7/8 in. Purchased with funds provided by the Photographs Council of the J. Paul Getty Museum. © Henry Wessel