Untitled (The Observatory)
Artwork: Untitled (The Observatory)
Size: 30.8 x 23.2 cm
Medium: Graphite and c-print collage on board
Creation year: 1972
Marks: Dated '5/29/72' on the reverse graphite
Category: Drawings
Provenance: Gift of the artist to the present owner

Sotheby's New York

Date: 2015-09-29
Lot Number: 139
Low Estimate: $5000
High Estimate: $6000
Hammer Price: Not Sold