Mail art by Ryosuke Cohen to John Evans dated September 17, 2002. The collage consists of postage stamps, artistamps, text and images produced by rubber stamp, drawings, and stickers. On verso, a typescript list of artists' names and addresses are present under the heading "Brain Cell-541." At the bottom, Cohen listed himself and his information.
Archives of American Art, Smithsonian Institution Washington, D.C. 20560