Specimen 2c Buff D die, 'Specimen' checks (RN-D1S), complete uncut sheet of six different designs, each with 'Invalid for actual use' printed imprint below in color of stamp and 'Specimen from Maverick Stephan & Co., New York' legend in black at bottom right, fresh, usual light folds mostly between checks, very fine, very scarce as an intact sheet of six est.