Call by the commander-in-chief of the South African Union troops, General Louis Botha, announces that in German Southwest Africa the means of payment will become invalid. / Photographer: Scherl

Announcement of the prohibition to leave the residence of the civilian population / Photographer: Scherl

Public appeal to war volunteers in German Southwest Africa in the First World War / Photographer: Scherl

Emergency money as a substitute for missing legal tender in the colony of German South-West Africa during the First World War / Photographer: Scherl

Emergency money as replacement for missing legal tender in the colony Deutsch-Südwestafrika in the First World War / Photographer: Scherl

A captive English colonel in the colony German South West Africa in the First World War / Photographer: Scherl

Announcement by Lieutenant von Heyderbreck about an extended invasion of German South-West Africa / Photographer: Scherl

Landing of the pilot Trück, who was the first to land in the steppe of German Southwest Africa in the First World War. / Photographer: Scherl

Colony Deutsch-Südwestafrika in the First World War: A German prison camp in Aus. / Photographer: Scherl

Bedingungen der Übergabe der Schutztruppe des deutsch-südwestafrikanisdchen Schutzgebietes, geschlossen am 9. Juli 1915. / Fotograf: Scherl

Gun of the protection force in fire position at the railway line Windhoek - Keetmanshoop / Photographer: Scherl

Provisioning column from Windhoek in German South West Africa / Photographer: Scherl

Rider of the Schutztruppe in the colony Deutsch-Südwestafrika in the First World War / Photographer: Scherl

The men who had been drafted into the war meet in front of the town hall in Windhoek, Namibia, which was then the colony of German Southwest Africa. De Vaal, the son-in-law General Botha´s speaks to the German population in Windhoek / Photographer: Scherl