1929 REGISTERED MAIL LONDON TO USA/STAMP DEALERS. KGV 4½d carmine registered envelope London to New Jersey, USA uprated with KGV 1d (SG419) cancelled MOORGATE date stamps 24 OCT 29 and on reverse privately produced label "FOREIGN POSTAGE STAMPS NOT LIABLE TO "DUTY". MAY BE OPENED FOR INSPECTION BY U.S. CUSTOMS". (Ref 99947).
