Czechoslovakia C89-C93, with label, MNH 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. For domestic purchases up to $60.00 first class mail will be used; purchases above $60.00 require mail with tracking number (buyer pays the mail fee). For international purchases up to $60.00 first class international airmail will be used; purchases over $60.00 require mail with tracking number (registered mail, buyer pays the $23.00 or $26.00 for oversize item). Warning for the buyers from Eastern European countries, Russia, China, Middle East, South Asia, Latin America, Africa exclude RSA, and the buyers with eBay ID less 100: the purchases over $30.00 require expedited mail.