Fragment of an airmail envelope of which both Kreisler stamps shows a bar through the former country name and 'cent' changed into 'sen', postmarked Djakarta 16.2.50.-9. Interesting piece of Indonesian postal history!

KPM. Beautiful commercial envelope from Pemangkat, West Borneo, bearing 50 sen, tied in red by circular N.V. Koninklijke Pakketvaart Maatschappij MS. DEMTA, to Singapore where it was postmarked Paquebot/Singapore 2 22 NOV 51