Netherlands East Indies. (Singapore). 1941. Air Mail envelope addressed to Switzerland bearing Netherlands Indies SG 429, 10c vermilion (2) and SG 439, 80c vermilion tied by Medan date stamp '28th July 41' with 'Geopend Door Censuur' label tied by circular 'Ned. Indisch Deviezen Instituut/ Deviezen Censuur/ 4' in carmine with 'Censuur/ 31' date stamp '29/7' on face and reverse, routed over the Pacific and Atlantic (two Oceans mail) with Singapore censor hand-stamp circular 'E' and '16' cachets in violet on face. Very fine.