Two etchings, one in colors, on CM Fabriano and Rives BFK papers, with full margins.

1981; and 1984

Sphynx I. 11 3/4 x 16 5/8 in. (29.8 x 42.2 cm)
Sphynx S. 22 x 30 in. (55.9 x 76.2 cm)
North Dakota I. 13 7/8 x 20 in. (35.2 x 50.8 cm)
North Dakota S. 23 1/2 x 28 in. (59.7 x 71.1 cm)

Both signed and dated, Sphynx annotated 'First Trial Proof' (the edition was 50), North Dakota numbered 40/54 in pencil (there were also 10 and 12 artist's proofs respectively), published by Gemini G.E.L., Los Angeles (one with their blindstamp and inkstamps on the reverse), printed in the United States, one framed.