Auction UPA 93

1d pale red-brown, from 'black' plate 1b, QC, 4 absolutely tiny margins except just touches at bottom right, WATERMARK INVERTED, neat partial black MC, fresh, f.u. RARE. SG Spec. A2d. Cat £6000 (image available) {U} [US1] (Start Price / Minimum Bid = £712.00)