Multiple comprising rubber stamps and paper, contained in a wooden box with Plexiglas lid.

1973

47 x 32 x 8.5 cm (18 1/2 x 12 5/8 x 3 3/8 in.)

Stamp-numbered 034/100 in black ink on the reverse (there were also 10 artist's proofs in black painted boxes), co-published by Edition Schellmann, Munich, and John Gibson Gallery, New York.