the complete set of six cardboard multiples, 1968, variably numbered from the edition of 75 (R&R. M-8 to 11 numbered 56⁄75; M-7 and M-12 numbered 52⁄75), there were also twenty sets numbered in Roman numerals, signed and numbered in ball-point pen on the reverse, published by Edition Plus, Baden-Baden, lacking the title page, justification page and original black canvas-covered portfolio