USA 1929, additional franking 2 C postal stationery cover from New York 15.8.29 to Sotton Coldfield, England, with 4 x 2 and 10 C in Michel F, forwarding mark with steamer \"S. S. Karlsruhe\" to Ireland with on face green vignette \"Airmal Karlsruhe - Galway\" and further with flight from Galway to London, with British postage stamps added to cover to pay postage due ½ P at the 27.8.29 by arrival postage due, superb