China. (French Indo-China/Hong Kong). 1940. Air Mail envelope addressed to France bearing Indo-China SG 171, 3c green, SG 191, 30c chestnut and SG 210, 66c olive (pair) tied by Lai-Chau/Tonkin date stamp '16/9' with military cachet '4th Territoire Militaire Tirailleurs Tonkinois/Le Vaguemestre' in violet, endorsed 'via Panamerican Airways/ et Transatlantic' and routed via Hanoi '2/10' with 'Opened by Censor/Hong Kong' label tied by boxed '46' cachet in green. Very nice item of censored mail.