cover 1903 (Jan.) XU5 from Weihaiwei to Ireland via Chefoo and Warsaw bearing C.I.P. 1c. tied by "LIU KUNG TAU/WEI HAI WEI" double ring d.s. in red and "KITAI" 10c. (defective) tied by Chefoo double ring d.s. in cyrillic. Holcombe certificate. Photo