Burma. (Field Post Office). 1945. Registered envelope headed 'O.A.S.' addressed to Ahemednagor bearing India SG 271b 3a violet and Burma 'Military Admn' SG 49, 5r violet and scarlet tied by F.P.O. No 138' date stamp '7th Nov 1945' with boxed 'R/ 173/ F.P.O. 138' endorsed in red ink, forwarded to 'S.E.A.C.' (South East Asia Command).