Robert Mapplethorpe (American, 1946-1989), 'Z' Portfolio, 1981. Washington, D.C.: Harry Lunn, and Robert Miller Gallery, New York, 1981; a portfolio of 13 gelatin silver prints, each signed and edition numbered 8/25 in ink on the mount, missing the printed title, essay by Edmund White, plate list, colophon, and brown silk folding case. Titles include: Alistair Butler, NYC, 1980; Philip Prioleau, NYC, 1979; Charles Edward Bowman, NYC, 1980; Dennis Speight, NYC, 1980; Dennis Speight, NYC, 1980; Untitled, NYC, 1981; Leigh Lee, NYC, 1980; Bruce Thompson, San Francisco, 1980; Untitled, NYC, 1981; Untitled, NYC, 1981; Untitled, NYC, 1981; Untitled, NYC, 1981; Daniel, NYC, 1981; Bob Love, NYC, 1981 (13)
7 1/2 x 7 1/2in each plate. Est. $20,000-30,000.Courtesy of Bonhams & Butterfields.

LOS ANGELES, CA.-Bonhams & Butterfields, the West Coast's leading fine arts auctioneers, is pleased to announce that its May 20 and 21, 2008 sales of Fine Prints and Fine Photographs in San Francisco (and simulcast to Los Angeles) will feature rare and fresh-to market works by Robert Mapplethorpe, Frank Stella, Andy Warhol, Henri Cartier-Bresson, Wayne Thiebaud and Manuel Alvarez Bravo.

Following on the heels of a robust Fall 2007 auction -- which produced strong prices and a new world auction record for a later printing of a Diane Arbus work, the spring 2008 offering is expected to entice collectors and connoisseurs from around the globe.

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Garry Winogrand, Los Angeles, 1964. Courtesy of Bonhams & Butterfields.