BRITISH BANKNOTES, Ulster Banking Co, Twenty Pounds, 1 July 1857, uniface proof on India paper card, specimen stamped at lower right, impressions from two small punch-holes, printed by Perkins, Bacon & Co (UB 20, this note illustrated; Pick –). A few tiny spots around edges and a couple of paper remnants on back, otherwise good extremely fine £200-260

Provenance: B. Blake Collection, Part II, Whyte’s/DNW Auction B10 (Dublin), 14 March 2009, lot 944