Great Britain 1855 1d red brown Plate 21, SG29varGreat Britain 1855 1d Red Brown Plate 21, SG29var Rare Block of Six An exceptional Victorian era multiple in remarkable condition. A superb unused with original gum block of six, from Plate 21, lettered 'SDTE', showing the Large Crown watermark, perforations 14, and Alphabet II. A scarce and desirable multiple in such fine condition, beautifully preserved with fresh colour and strong detail. Accompanied by a 2013 Royal Philatelic Society (RPS)