Tanzania. Bank of Tanzania. 1966 Issues. 20 shillings Type 1966. Date: June 16, 1966. Dimensions: 149 x 76 mm. Watermark: Giraffe head. Material: Paper. Solid security thread. Printer: Thomas De la Rue (TDLR), London, England. Front and back: Polychrome printing predominantly purple. Description of the front: Frame composed of guilloche patterns with the value in the corners. Prefix and numbering in black. On the right, a portrait of the first president Julius Kambarage Nyerere. Palm trees. Coat of arms of Tanzania in the center. Texts in English and Swahili. Flower wreath around the filigree. Five combinations of signatures with the Minister of Finance and the Governor. Description of the back: Frame composed of guilloche and geometric patterns with the value in the angles. Texts in English and Swahili. Stylized diamond. View of a mining complex. Replacement notes: Prefix ZZ and ZY.