Türkiye: 1947 (17 February). Airmail cover to United States franked with 2 1/2k, 6k, 12k, 12 1/2k Second Balkan Conference of 1931 commemorative and definitive stamps tied by Beyoglu-Istanbul datestamps. Reverse 2k thick paper National Defence obligatory tax stamp and 28 February arrival cachet. Very late usage.
