1913 Tientsin (23 May) to USA. Registered cover, f.w. Hong Kong KEVII 10c in pair + 2c + KGV 4c, tied by Tientsin BPO Webb type B cds,
1913 Tientsin (23 May) to USA. Registered cover, f.w. Hong Kong KEVII 10c in pair + 2c + KGV 4c, tied by Tientsin BPO Webb type B cds, alongside with Webb type Rii oblong registered mark in red. Transit London. Arrived New York (14 Jun). Early example of this type of registered mark.1913.5.23 天津寄美國。掛號封,貼香港愛德華七世10仙雙連 + 2仙 + 佐治五世4仙,銷天津英局Webb B型日戳,旁鈐Webb Rii型長方形掛號章。經倫敦。6.14抵紐約。為該款掛號章之較早例子。