Netherlands East Indies. 1941. Air Mail envelope addressed to Sydney, Australia bearing SG 401, 5c ultramarine and SG 429, 10c vermilion (strip of three) tied by Makasser date stamp '17th April 41' with 'Door Censuur/Geopend' censor label tied by circular 'Ned Indisch Deviezenn Instituut/ Deviezen Censuur/ 1' in red on face and reverse. Nice item paying the 35c Air mail rate to Australia.