French Indo-China. (Hong Kong). 1940. Air Mail envelope addressed to Washington bearing Indo-China SG 184, 15c blue, SG 193, 60c lilac and SG 195, $1 bright green (pair) tied by Tinh-Tuc/Tonkin date stamp with 'Control Postal/Militaire' censor label tied by oval 'Ouvert/Par/ L' Autorite Militaire' routed via Hong Kong with 'Opened by Censor/ Hong Kong' label tied by framed '112' cachet sent via the Pacific. Very fine.