Australia. (Netherlands East Indies - Borneo). 1945. Air Mail envelope headed 'On Active Service' bearing Australia SG 187, 3d purple-brown tied by 'Field Post Office/ 026' date stamp '13th July 45' with framed 'From H.M. Ship/ Passed By Censor', signed and dated with circular '1' censor cachet in violet on face.
Field Post Office No 026 was based in Morotai Docks (23.4.45) - (25.9.45).