Signed in pencil, numbered TP 18/36, one of 36 trial proof impressions with unique colour combinations, aside from the regular edition of 250 (there were also fifty artist's proofs), published by Gaultney, Klineman Art Inc., New York, with the artist's inkstamp verso, printed by Rupert Jasen Smith, New York, with his blindstamp, the full sheet, in very good condition, framed