indistinct postmark on cover franked with 1870 6c Carmine Banknote (148), paying the 1870 Treaty Rate on 1871 cover to Royston, England, backstamped London July 5, redirected to London with Great Britain 1d Red placed precisely over the US adhesive, July 6 Royston postmark and July 7 London backstamp, very fine and choice, three ships arrived in London July 4 (Cunard's Calabria, Inman's City of Paris, and N.G.L.'s Bremen)