Pick: #1 , The Banknote Book: B101
British Guiana. Government of British Guiana. Dollar system. 1916-1924 "Arms" Issue. 1 dollar type 1916. Date: August 1st, 1916. Dimensions: 118 x 63 mm. Watermark: None. Material: Paper. No security thread. Printer: Thomas De La Rue and Co (TDLR), London. Front and back: polychrome printing predominantly red. Sealing ship seal at left. Texts in English. Signatures of the Currency Commissioners: Cecil Clementi, Reginald Clifton Grannum and William John Robson. Description of the back: Guilloche patterns and sealing ship seal at centre. This note was sold $ 646.25 by Heritage Auctions in 2013 (lot #26024). Grade: PMG 10 Apparent.