1959 REGISTERED AIR MAIL LONDON TO USA/2/6 CASTLE USAGE. Envelope sent registered air mail London to New York, USA with 2/6 Castle (several short perfs) and 1s Wilding cancelled REGISTERED/STH.MOLTON ST. date stamps 18 OCT 59. On reverse NEW YORK receiver OCT 17 1959. (Ref 109597).
