Reference:
Pick: #5 , The Banknote Book: B105
Reference list
Description
Botswana. Bank of Botswana (Banka ya Botswana). 1976-1979 Issues. 20 pula type 1979. No Date. Introduction: February 16, 1978. Dimensions: 144 x 72 mm. Watermark: Rearing Zebra. Material: Paper. Solid security thread. Printer: Thomas De La Rue & Compagny, Limited, London. Multicolored front and back printing, predominantly red. Description of the front: on the left, a portrait of President Sir Seretse Khama. In the center, an ostrich. Coat of arms of Botswana. Prefix and numbering in black. Texts in English. Two combinations of signatures with the Minister of Finance and the Governor. Description of the back: Mining conveyors at center right. Texts in Setswana.