China. (Hong Kong). 1941. Registered Air Mail envelope addressed to Australia bearing SG 401, 20c ultramarine, SG 429, $1 yellow-green and SG 431, $5 carmine tied by Shanghai date stamp '4th Mars' with Shanghai registered label and m/s 'AV/ 2' in pencil and red crayon, routed via Hong Kong with framed 'Not Opened by/ Censor' in violet on face and Hong Kong transit '11th Mar' on reverse with Chatswood receiver '26/3'. Very attractive and colourful Air Mail cover sent Onward Air Transmission/ AV.2. via Hong Kong.