Airmail cover franked with 1938 pair 1½d brown and 1/- green & purple brown GVI issue (SG 123 & 130) tied by two strikes of NINE TURNS cds dated OC 24 1951. Addressed to UK and taxed on arrival with large '6 D I.S.P.' tax mark in black and added Great Britain 1937 5d yellow brown and 1951 1d violet blue 'Postage Due' issue (SG D32 & D38) tied by RICKMANSWORTH HERTS cds.