About #2 - 50 mark type 1914
Cameroon. Imperial Government of Cameroon (German occupation). Douala Treasury. 1914 Issues. Date: 12.08.1914. Dimensions: 158 x 105 mm. Watermark: no. Material: paper. No security thread. Printer: unknown. Front and back printing in black on brown paper. Description: texts in German. Decorative frame in black. Background with an imperial eagle in light brown or reddish-brown. Numbering in blue. Value of 50 mark indicated in the angles. Signature combinations: August Full / Kräuter. Back: texts in German. The note exist cancelled by a cross on the front.