137792 1946? VERY LARGE ENVELOPE WEST BROMPTON, LONDON TO INDIA WITH KGVI 5S RED (SG477) X 3, ALSO 3D AND 1S.

1946? VERY LARGE ENVELOPE WEST BROMPTON, LONDON TO INDIA WITH KGVI 5S RED (SG477) X 3, ALSO 3D AND 1S. Very large envelope, 357 x 265, peripheral faults as expected but folds clear of stamps, sent air mail from London to Bombay, India with KGVI 5s red (SG477) x 3, 3d pale violet (SG490) and 1s bistre-brown (SG475) tied 'WEST BROMPTON' undated cancellations. On reverse 'BOMBAY' date stamp 1946?. A most unusual franking to India. (Ref 137792).