1915, envelope with the imprint "DEUTSCHER HÜLFSVEREIN STOCKHOLM" to a Sgt. of the police force in Keetmannshoop. The letter is franked with ½ d (3) and 1 d, cancelled by "WINDHUK S.W. AFRICA " (Image)

1916, company envelope from SWAKOPMUND, tied by an adapted German railway postmark with horizontal pair 2½ d to the peace bureau in Bern. In addition a prisoner of war letter from the camp "AUS" with the commandant's oval stamp and an adapted German rail postmark to Windhoek. (Image)