German Southwest Africa Windhoek with Tree Private Postal Stationery Fr PP3 F 1 (front) Fr PP3 F 1 (rear) This card became available for use in 1902. It depicts cattle being driven past a tree, with Windhoek in the background. Set Date(s) 1902 Windhoek with Tree Private Postal Stationery Fr PP3 F 1 (front) Fr PP3 F 1 (rear) This card became available for use in 1902. It depicts cattle being driven past a tree, with Windhoek in the background. Set Date(s) 1902