variation von 99: "a head I ahead", 1971; zeichnung 16 x 14 cm, colour pencil. matrizendruck, 1971, 1 v. mind. 4 Ex.

variation of 99: "a head I ahead", 1971; drawing 16 x 14 cm, colour pencil, stencil print, 1971, 1 of at least 4 copies