1945 (9 Aug) registered airmail cover (252x150mm) used Port Elizabeth to Ohio to the \'Firestone Tire and Rubber Company\' bearing high value franking of 5/- block of four, 10/- block of ten plus 1/-, 4d and 6d singles, backstamps of Port Elizabeth, Miami (transit) and Akron arrival datestamps. Total franking of £5/1/10d paying 4d registration + 29 times 3/6d ½oz - 14-14½oz rate. Amazing cover