World Notes, British Guiana, Colonial Bank, Demerara, uncut proof sheets (3) with First, Second and Third Bills of Exchange, first with pencilled date 16th.Feb.1872 at bottom, second 'To this from Barbados, June 19th.1868, third, 'To this from Kingston.Jam'a, July 4th.1873', watermark 'Cansell 1871' on first sheet, 'Perkins Bacon & Co.' on others, minor mounting residue on backs, some staining extremely fine (3)