MANCHURIA - POST-WAR UNREST - RARE "...destination blockaded..." MARK ON INGOING COVER EX G.B.; Attractive 29 Nov 1946 env. ex London with GB KGVI 3d tied by "FIELD POST [OFFICE]/406" cds (Polish Army in London) addressed to "Harbin, Manchuria, China" endorsed ms in red ink "To" & blue crayon "BAOR" with fine dotted "CHANG CHUN" backstamp (located between Peking and Harbin) but the letter apparently got no further as it has fine red boxed "Mail route to destination/blockaded, return to sender" & "UNDELIVERED FOR REASON STATED/RETURN TO SENDER" hs's on the front. [A similar cover sold in our 3/6/2015 sale 776 for £850 + BP]. Also 1949 env. addressed to Chung King with large violet boxed "SERVICE SUSPENDED/RETURN TO SENDER" hs posted during the HMS Amethyst Yangtze incident. Fine pair. Cross Reference: KGVI ISSUES (Image)