1931 (19 Aug) Ki-Hei Postal Administration announcement, stating a mail bag taken by the Russian army was not traceable.
1931 (19 Aug) Ki-Hei Postal Administration announcement, stating a mail bag taken by the Russian army was not traceable.1931.8.19 吉黑郵務管理局公函，指一件郵袋被俄軍掠去而無法追查。
