细节
cover 1900 (28 Feb.) G.B. 1d. stationery card from London to Wei-Hai-Wei showing, on reverse, superb "LIU KUNG TAU/POST OFFICE." oval d.s. (10.4) in blue partly overstruck by Hong Kong transit c.d.s. (29.3); the card with some minor discoloration clear of cancels. Photo