Details
cover 1902 (19 Jan.) philatelic registered envelope from to Tongku to Germany, bearing C.E.F. ½a., 1a., 3a., 8a. and 1r. cancelled by "BASE OFFICE/B/REG" single ring d.s. (Proud R1) and showing boxed registration h.s. (Proud R3), "BASE OFFICE/REG" c.d.s. (26/1) (Proud D7), Hong Kong and arrival c.d.s. on reverse