1936 Pro-Patria, wholesale lot of 40 uncut blocks of four sheets, n.h., fine-v.f. (also included four additional sheets with marginal faults, not counted) (Zumstein Blockbogen = 4 Blocks No.8, Sfr.17,000+) cat. $18400 (Cat No. B80a) (Image)

Cat. $18400, Est.US$3,000