Netherlands East Indies. (Horse Shoe Route). 1940. Air Mail envelope addressed to London bearing Netherlands East Indies SG 406, 25c blue-green, SG 413, 1g violet and 'Red Cross' SG 428, 10c + 5c on 12 1/2c orange tied by Soerabaja date stamp '15th Dec 40' with circular 'Ned. Indisch Deviezen Instituut/ Drviezen Censuur/ Soerabaja/ 2' in carmine, endorsed 'By I.A. to Durban' with 'Opened by Examiner/ 1303' censor label applied on arrival. Nice item sent on the 'Horse Shoe' route.