1939年天津寄美国实寄封1件，贴京版烈士2.5分横双连，20分1枚，销天津12月8日，因此时国际邮资已改为50分，因此作欠资处理，在美国盖紫色欠资戳，另贴美国欠资票5分1枚，骑缝销戳，保存完好ChinaPostal HistoryRepublic of China1939 (8 Dec.) envelope to U.S.A. bearing Martyrs 2 1/2c.horizontal pair and 20c. tied by Tientsin c.d.s. Since the international postage rate change to 50c. this envelope treat as underpayment on arrival in U.S.A., bearing postage due 5c., showing postage due 5 cents/ Seattle, Wash handstamp in violet, fine.
