THE "466" NUMERAL OF LIVERPOOL IN RED USED TO DELETE INCORRECT US CHARGE MARK. 1857 envelope (somewhat soiled) from Moy (Ireland) to USA with 1/- green (SG73) tied "343" numeral of Moy placed lower left. At upper right good strike of the Liverpool numeral in RED USED TO DELETE INCORRECT US "21 CENTS" CHARGE MARK. Also on front correct "5 CENTS" charge mark in red. Backstamped MOY SE.30.1857. RARE USAGE OF A COLOURED NUMERAL. (Ref 68391).