1941. Air Mail envelope (faults) addressed to the United States bearing SG 243, 50s black and orange-brown, SG 244, 1t green and Iilac, SG 288, 10s carmine and SG 289, 15s blue tied by Bangkok/GPO date stamp with circular censor '4' in violet on face, endorsed 'via Trans Pacific Air Line' and routed via Australia with 'Opened by Censor' label tied by 'Passed by Censor/S. 311' in violet. Attractive item of censored mail. Nice routing.