1911 Canton (28 Feb) to USA. Registered cover, f.w. Hong Kong KEVII 10c in pair, tied by Canton BPO Webb type Eii (Index B) cds., along
1911 Canton (28 Feb) to USA. Registered cover, f.w. Hong Kong KEVII 10c in pair, tied by Canton BPO Webb type Eii (Index B) cds., along with "CANTON BPO" registered mark. Transit Hong Kong (1 Mar). Arrived San Francisco (21 Mar).1911.2.28 廣州寄美國。掛號封，貼香港愛德華七世10仙雙連，銷廣州英局Webb Eii型B字日戳，旁鈐CANTON BPO掛號橫戳。3.1經香港。3.21抵三藩市。
