1907-1909 a group of 4 picture postcards and stationery cards from Harbin, all applied with Harbin Russian PO T&S type 4 cds,
1907-1909 a group of 4 picture postcards and stationery cards from Harbin, all applied with Harbin Russian PO T&S type 4 cds, showcasing different subtypes. 1907至1909年一組四件圖片明信片及郵資片，寄自哈爾濱，均鈐哈爾濱俄局T&S 4型日戳，展示了不同細分戳型。
