No cover. US Letter sheet. Invitation to participate in "AU INTERNATIONAL MAIL ART EXHIBTION IN OSAKA." organised by Ryosuke Cohen (see Folder: 610 for poster). US Letter sheet enclosed. Rubber stamps in red ink: "SALVATORE DE ROSA", cartoon pig, rabbit, and goose. Frame made with typewriter repeating "BAKHCHANYAN". Translation of Mayakovsky into Italian. US Letter sheet enclosed. Collage of brick pattern and cartoon animal rubber stamps in various colors. Rubber stamp in blue ink: "SALVATORE DE ROSA" and return address. US Letter sheet enclosed. Collage of book stack and cartoon animal rubber stmaps in various colors.