ART & DESIGNPhotos: False GritCurator Dylan Brant demystifies the cowboy in a new exhibition.by Fan Zhong05.08.151Bob Mizer’s Untitled (Larry Lamb, Catalog #UH1-FH), Los Angeles, 1963. Courtesy of Venus Over Manhattan and Bob Mizer Foundation, Inc.2Denis Hopper’s Dean Martin and John Wayne “The Sons of Katie Elder”, 1965. Courtesy of the artist.3Ray Johnson’s Untitled (Gerard Malanga Burnt Envelope with Cowboy), 1976 – 1994. Courtesy of Richard L. Feigen & Co.4Ray Johnson’s Untitled (1958 James Dean with Outlet Mask), 1994. Courtesy of Richard L. Feigen & Co.