Four signed, dated '66' and numbered 5/20 in pencil (there were also 5 artist's proofs), one signed, dated '67', dedicated 'pour Robert avec Paul' and numbered 25/45 in pencil (there were also 15 artist's proofs), additionally signed and dated '67' on the title page in pencil, published by Pratt Graphics Center, New York, printed in the United States, all unframed