Rwanda. National Bank of Rwanda. 1960-1962 "Provisional Overprint on Rwanda-Burundi Notes" Issue. 500 francs Type 1960. Date: May 15, 1961. Dimensions: 160 x 73 mm. Watermark: None. Material: Paper. No security thread. Printer: Thomas De la Rue (TDLR), London, England. Front and back: Polychrome printing predominantly brown, lilac and green. Description of the front: Background made up of guilloche patterns with the value in the corners. Prefix and numbering in black. On the right, a rhinoceros eating at the edge of a forest. Texts in French. Embossed stamp "National Bank of Rwanda" on a 500 francs of Rwanda-Burundi (Pick # 6) with the signature of Governor Jean-Baptiste Habyarimana. Description of the back: Background made up of guilloche patterns and rosettes with the value in the corners. Texts in French. Large rosette in brown in the center.