Texas Mastaba, Project for 500,000 Stacked Oil Drums, from America: The Third Century (S.85), 1976 Lithograph with collage of screenprint in colors on brown wove paper, signed in pencil and numbered 8/25 HC (an hors commerce proof, aside from the numbered edition of 200 and 25 artist's proofs), published by APC Editions, Chermayeff, and Geismer Associates, New York, printed by Styria Studio, New York, the full sheet, framed. sheet 30 x 22 1/4in (76.2 x 56.5cm)