Netherlands East Indies. (Indonesian Republic - Postage Dues). 1950. Stamp-less envelope endorsed 'Penting' and 'Franco Bajar' cancelled by Soerabaja date stamp '12th August 50' with circular 'T' hand-stamp and bearing Indonesian Republic postage due SG J69, 25s on 15c salmon (2) mixed with United States of Indonesia SG D578, 10c on 15c greenish blue tied by Barat receiver '16th Aug' and forwarded to Madion '8th Sept' with hand-struck 'Retour' in violet on face. Rare combination of postage dues from the Republic and Indonesia on cover.
Ex Paul Bulterman's Indonesia postage due collection.