Netherlands East Indies. (Indonesian Republic). 1950. Stampless envelope cancelled by Salatica date stamp '11th April 50' addressed to Soerabaja with circular 'T' hand-stamp with United States of Indonesia postage dues SG D578, 10s on 75c green-blue (strip of three) applied and tied by Soerabaja date stamp on face '11th April 50'. Scarce postage dues on cover.
Ex Paul Bulterman's Indonesian Postage Due collection.