Untitled (Equivalents), lithograph on white wove paper, 1960-69. 555x397 mm; 21¾x15⅝ inches (sheet), full margins. Signed and numbered 37/50 in pen and black ink, lower margin * Untitled (Announcement Poster for "Periodic Table"), screenprint. 1967. 455x455 mm; 17⅞x17⅞ inches (sheet), full margins. Signed and numbered "15" in pen and black ink, lower right. Published for the same titled exhibition at the Dwan Gallery, New York. Both very good impressions.
