ca 1910 a group of 4 CIP 4th print PSC, all commercially used for domestic and foreign mails, tied by Canton, Manchouli, Shanghai LPO and
ca 1910 a group of 4 CIP 4th print PSC, all commercially used for domestic and foreign mails, tied by Canton, Manchouli, Shanghai LPO and Hankow cds respectively.約1910年代一組四件大清第四版郵資片,均實寄國內外地址,銷廣州、滿洲里、上海工部郵局及漢口日戳。