The extremely rare suite of 13 progress proof lithographs in colours, on Arches paper, with full margins,

1961

various sizes, largest S. 64 x 45.5 cm (25 1/4 x 17 7/8 in.)

all signed with initials and numbered 2/3, with further inscriptions in French indicating the number of colours used for each proof, all in pencil (one of 3 suites of progress proofs, preceding the final 8 colour edition of 50 in Arabic numerals and 6 hors commerce in Roman numerals), published by the artist, all unframed.