142020 1937 VERY LARGE ENVELOPE AIR MAIL LONDON TO MELBOURNE, AUSTRALIA WITH £1 PUC (SG438) AND 2/6 SEAHORSE (SG450) X 2.

1937 VERY LARGE ENVELOPE AIR MAIL LONDON TO MELBOURNE, AUSTRALIA WITH £1 PUC (SG438) AND 2/6 SEAHORSE (SG450) X 2. Very large envelope, 353 x 228mm, sent air mail from ICI Ltd, Millbank, London to ICI Australia and New Zealand Ltd in Melbourne, Australia with fine £1 PUC (SG438) and 2/6 Seahorse (SG450) x 2 cancelled 'WILTON ROAD/HUDSONS PLACE/S.W.1' date stamps 27 FE 37. On reverse 'MELBOURNE' date stamp. Some creasing as expected but generally clear of stamps. AN EXCEPTIONAL COMMERCIAL USAGE. (Ref 142020).