This really neat, vermilion, GB Victoria, 4d, 1870 (SG94, Plate 13(Q L)/Spec.: Z64) issue was used at the British Post Office in Valparaiso, Chile! It's in very good-fine condition, but does have some stains at the back and very top of the front(possibly connected to an old hinge that was removed at some point). A great, almost-complete, SOTN CDS cancel was applied! GB 4d. stamps used abroad from Valparaiso, Chile, are not as common as some other denominations of stamps, let alone with such a gorgeous, SOTN CDS!