Lot 40125 – UNIQUE SHOWPIECE: Only Known Used Block on Ribbed

UNIQUE SHOWPIECE: Only Known Used Block on Ribbed Paper 1850-57 45c Blue, type I, on vertically ribbed paper, spectacular used block of four on small piece, 2-line Padova datestamps, BR stamp shows frame breaks at top right, huge margins on 3 sides showing part of neighbours at foot, fine showpiece, cert. A. Diena (1952) (Sassone unpriced as a block, and not even mentioned there)