1928 Postage Dues 2m. yellow and 10m. grey used on stampless cover from Earl's Court, London (19 May 39) to Jerusalem, with tax marks "T 30" in m/s and Palestine boxed "TO PAY '12' MILS" h/s in violet while '12' in m/s, Dues tied by "JERUSALEM/25 MAY 39" c.d.s. Cover opened somewhat roughly, still good. A scarce postage due cover.