1906 (21 Apr) Hong Kong QV 10c stationery cover (size K, 6 x 11-1/2 inch) with surch insurance fee 25c to $2.5, from China Inland Mission,
1906 (21 Apr) Hong Kong QV 10c stationery cover (size K, 6 x 11-1/2 inch) with surch insurance fee 25c to $2.5, from China Inland Mission, Chefoo, England, uprated by KEVII 2c in pair + 10c in pair, tied by Chefoo BPO cds., alongside with circled R mark. Transit Hong Kong (30 Apr). Arrived England (30 May). Seven times rate example. Scarce usage of K surch registered cover. 1906.4.21 香港維多利亞女皇像10仙掛號郵資封(size K 6 x 11-1/2 inch),保費加蓋改值25仙至2元5角,自中國內地會寄英國,加貼愛德華七世2仙雙連 + 10仙雙連,銷煙台英局日戳,旁鈐R章。4.30經香港。5.30抵英國。七倍郵資例子。K改值封實寄相當稀罕難得。