TIENTISN Russian PO. 1912 civilian mail to Chita, plus a 1917 Prisoner of War mail by German Red Cross for Siberia.
TIENTISN Russian PO. 1912 civilian mail to Chita, plus a 1917 Prisoner of War mail by German Red Cross for Siberia.天津，2件實寄封，其一1912年寄赤塔；另一件1917年由天津德國救助西伯利亞戰俘紅十字會寄出。
