envelope addressed to the U.S. Consul in Swatow bearing 8c. pale dull orange tied by a very fine strike of the rare type B1 "B62"; "4" in red ink at left with despatch and arrival c.d.s. on reverse. Very fine and it is thought that only one other example exists on cover. Photo" /> cover 1872 (4 July)<I> "Wingate"</I> envelope addressed to the U.S. Consul in Swatow bearing 8c. pale dull orange tied by a very fine strike of the rare type B1 "B62";<I> "4"</I> in red ink at left with despatch and arrival c.d.s. on reverse. Very fine and it is thought that only one other example exists on cover. Photo | Christie's