a: stamp marks in blue ink and mailing label on manila envelope with postage stamp, two-sided b: offset printing on yellow paper, thirteen two-sided postcards
Mail art. Envelope containing 5 postcards. a: Offset, black on white cardstock. b-c: Offset black and gold on white cardstock. d: Offset black and green on white cardstock. e: Offset black, green, blue, yellow, brown and purple on white cardstock.