CIRCA 1872 GB REVENUE UNAPPROPRIATED £20 DIE PROOF EX DE LA RUE STRIKING BOOK. A good circa 1872 GB revenue unappropriated £20 stamp size die proof in black on glazed card mounted on piece, 47 x 41 mm ex De La Rue striking book. Some faults but a survivor of the 1941 bombing of the De La Rue printing works. Manuscript 'June 11th/30 Leads/1/402'. Very rare and unique. (Ref 143365).
