1919 cover to “Banque du Congo Belge” bearing mixed franked India I.E.F. 2a. and G.E.A. overprinted 3c, the use of I.E.F. stamps were allowed in 1919, 2 annas was equivalent to 12 cents, thus 15c. foreign rate, Kigoma belonged to Belgian Congo until 22/3/21. The stamps cancelled by manuscript “Tabora”, reverse with Kigoma arrival cds; fine and unusual.