1919 (29 Sep) WWI POW cover from Japan to Tsingtau, frankless and applied with Japan origin cds. Applied with Tsingtau POW Camp bilingual
1919 (29 Sep) WWI POW cover from Japan to Tsingtau, frankless and applied with Japan origin cds. Applied with Tsingtau POW Camp bilingual mark in red. A POW camp was estalished by the Japanese to detain German POW. 1919.9.29 一戰戰俘封自日本寄青島，無貼票，鈐日本始發日戳，旁鈐青島戰俘營之長方形戳記。
