SOUTH SHETLANDS - DECEPTION IS. - 3d-RATE 'PROVING COVER' TO...

SOUTH SHETLANDS - DECEPTION IS. - 3d-RATE 'PROVING COVER' TO URUGUAY (WIFE OF BRITISH SCHOOLMASTER); 6 Feb. 1944 env. (embossed Admiralty flap; slight faults at top) ex Deception Is. Base B to the wife of P. S. Schor the Headmaster of The British School in Montevideo (who worked for the Admiralty's Department of Naval Intelligence in London in 1943/5) in Montevideo (arrival m/c of 13 Mar. on reverse) with S. Shetlands 1d+2d tied by very fine purple "South Shetlands" cds's but having no Naval censor mark or label. Mrs Schor is recorded as one of the Tabarin addressees of official Admiralty Proving Covers that could be used to establish Britain's establishment of the Bases. Very rare Proving Cover from the S. Shetlands.Cross Reference: FALKLAND ISLANDS DEPENDENCIES, MILITARY - P.O.W. MAIL, URUGUAY