1940 AIR MAIL WILLESDEN TO USA/2/6 BROWN (SG476). Envelope (230 x 104) Wembley to New York, USA with KGVI 3d violet (SG367), 1s bistre-brown (SG475) and fine 2/6 brown (SG476) cancelled WILLESDEN date stamps 9 NO 40. Censor label at left. (Ref 109648).