缅甸邮路信封三件: 1939年10月30日重庆飞昂光首航封; 1940年2月8日经重庆中转寄斯德哥尔摩航空封; 1940年3月9日昆明经昂光寄英国航空封. 整体品相中上.China Covers and Cancellations Air MailInternational Burma Route, Route 6: 1939 (30 Oct.) Chungking - Rangoon first flight cover to Rangoon bearing 75c. franking tied by the special commemorative c.d.s.; 1940 (8 Feb.) air mail envelope to Stockholm bearing $2.50 franking tied by Shasi despatch and Chungking transit (17.2); 1940 (9 Mar.) air mail envelope to England “Via Air to Rangoon, via IAL to England” bearing $2.50 franking cancelled by Kunming c.d.s. (3 covers)
