China. (Great Britain). 1941. Air Mail envelope addressed to Shanghai, China bearing Great Britain SG 477, 5s red tied by Haslemere, Surrey double ring '26th May 41', with 'Opened by Examiner/ 5462' censor tape, endorsed 'North Atlantic and Transpacific/ Air Service' with Shanghai arrival on reverse. Nice single franking paying the two Oceans route over the Pacific and Atlantic Oceans.