British East Africa. 1940. Stamp-less envelope written from German Internee, 'Internment Camp A3, Dar-es-Salam' addressed to Germany cancelled by 'Camp Post Office/Daressalam' double ring with hand-stamp 'Postal/ Internment Camp/Commandant/Frank' and oval 'Internment Camp/Passed by Censor/Dar es Salam' with boxed 'Passed No 19/by Censor' in violet on face with 'Opened by Censor/2339' label with German censor and cachet on reverse. Nice item.