1916 (28 May) WWI German POW postcard from Nikolsk-Ussuriysky to Peking, applied with Nikolsk-Ussuriysky censor mark. Transit Vladivostok
1916 (28 May) WWI German POW postcard from Nikolsk-Ussuriysky to Peking, applied with Nikolsk-Ussuriysky censor mark. Transit Vladivostok (28 May), Peking Russian PO (4 Jun). Arrived Peking German PO (18 Jun).1916.5.28 一戰德軍戰俘明信片自雙城子戰俘營寄北京，鈐雙城子檢查戳。5.28經海參崴，6.4經北京俄局。6.18抵北京德局。
