CIRCA 1872 GB REVENUE UNAPPROPRIATED 6d DIE PROOF EX DE LA RUE STRIKING BOOK. A fine 1872 GB revenue unappropriated 6d stamp size die proof in black on glazed card mounted on piece, 46 x 32 mm ex De La Rue striking book. Slight burnishing at left, manuscript 'June 11th/120 Leads/1-395'. Very rare and unique. (Ref 143362).
