WattsOSUMUntitled Multiple1968 · Multiple of metal, plastic and papercomposition 19 1/2 x 7 3/4 x 3 3/4" (49.6 x 19.7 x 9.6 cm)Museum of Modern Art
WattsOSP1Plate 10 from l'Avanguardia Internazionale, Volume 4/l'Avant-Garde Internationale, Volume 4/The International Avant-Garde, Volume 41962 · Collotypeplate: 4 1/4 × 5 7/8" (10.8 × 14.9 cm)Museum of Modern Art