About #1 - 5 mark type 1914
Cameroon. Imperial Government of Cameroon (German occupation). Douala Treasury. 1914 Issues. Date: 12.08.1914. Dimensions: 150 x 97 mm. Watermark: no. Material: paper. No security thread. Printer: unknown. Front and back printing in green and black. Description: texts in German. Floral background in green. Numbering in black. Value of 5 mark indicated in the angles. Signature combinations: August Full / Kräuter. Back: texts in German. The note exist cancelled by a cross on the front.