Reference:
Pick: #5 , The Banknote Book: B104
Reference list
Description
British West Africa. West African Currency Board. 1916-1920 Issues. 20 shillings type 1916. Dates: March 31, 1916 and March 30, 1918. Dimensions: 186 x 92 mm. Watermark: West African / Currency board between a palm tree and the value 20. Printer: Waterlow & Sons Limited, London. No security thread. Material: Paper. One-sided print predominantly red and black. Description of the front: Decorative frame. Palm tree in the center. Series and numbering printed in black. Texts in English. Two combinations of signatures with Members of the Currency Board.