This unusual photo is of a WD issue BSA with its pith helmeted services rider. Usefully there is an annotation on the back 'Feb 1st 1918. Daressalamm' (sic).
At that point (1918) Tanzania was still officially part of German East Africa. Having rebelled against German rule just over ten years previously presumably Tanzanians were less than pleased that their country was passed on to the British Empire after the Treaty of Versailles came in to effect at the beginning of 1920.
Note the military contract number painted on to the petrol tank.
|BSA military Model K in Tanzania.|