U5 1900 (3 Oct.) 10c. registration U5 (size H) to London, bearing additional 10c., both cancelled by c.d.s. and showing registration label; 1909 (22 Dec.) 10c. registration U5 (1907 issue, size H) to Belgium, bearing additional 8c. pair, both cancelled by "REGISTERED/G.P.O. HONG-KONG" c.d.s. and showing Type Rvi registration h.s.; 1910 (31 May) 10c. registration U5 (1907 issue, size H) to Canada, bearing additional 10c., both cancelled by "REGISTERED/G.P.O. HONG KONG" double-ring c.d.s. and showing Type Rvii registration h.s.

细节
U5 1900 (3 Oct.) 10c. registration U5 (size H) to London, bearing additional 10c., both cancelled by c.d.s. and showing registration label; 1909 (22 Dec.) 10c. registration U5 (1907 issue, size H) to Belgium, bearing additional 8c. pair, both cancelled by "REGISTERED/G.P.O. HONG-KONG" c.d.s. and showing Type Rvi registration h.s.; 1910 (31 May) 10c. registration U5 (1907 issue, size H) to Canada, bearing additional 10c., both cancelled by "REGISTERED/G.P.O. HONG KONG" double-ring c.d.s. and showing Type Rvii registration h.s.