Trinidad: 1917 O.H.M.S. Prisoner of War envelope to the Red Cross in Geneva, with violet “MILITARY CAMP/Trinidad, B.W.I” and “PRISONERS OF WAR/TRINIDAD/P.C.” cachets and boxed “TRINIDAD/PAID/GOVERNMENT OFFICIAL”, with cursive “Percy W Fraser Capt/Military Camp/Trinidad” handstamp on reverse. Photo. (Image1)