Czechoslovakia C89-C93

$ 2.55

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Czechoslovakia C89-C93, MNH, $3.60. Michel 2396-2400. Air Post 1977. PRAGA-1978. History of Aviation. Zeppelin; Ader, 1890, L'Eole, Dunn, 1914; Jeffries-Blanchard balloon, 1785; Otto Lilienthal's glider, 1896; Jan Kaspar's plane, Pardubice, 1911.