天津海关:叁分银票销黑色1888年2月20日戳,及伍分银淡赭黄色四方连票,销蓝紫色1891年6月28日天津第五型戳,罕见用于盖销邮票之上.。1885-88 Small Dragon Issues,Postmarks,Tientsin,Customs: 1888 (20 Feb.) c.d.s on 3ca. in black, and on 5ca. pale yellow-ochre block of four in bluish violet dated 1891 (28 June) with Tientsin seals type V; scarce used as a cancellation on stamps. Photo