Netherlands East Indies. (Censor Mail). 1940. Envelope written from the 'Nederlandsch Indische Handelbank' addressed to Chicago bearing Netherlands Indies SG 402, 7 1/2c violet tied by Menado date stamp '18th Oct 40' with 'Door Censuur Geopend' label tied by circular 'Deviezen Censuur/ Menado No 1' censor cachet in black on face and reverse.
Scarce censorship from Menado, Sulawesi Island, only in use for three months.
See 'Nico de Weijer's' wonderful book on Netherlands Indies World War Two censorship.