Air Mail cover 1917 (14 March) picture postcard to Germany from "Feldpoststation No.16" (L.Z. 97) with "K.D. Feldpost" c.d.s., also 1916 picture postcards (3, one of the L.Z. 81 balloon) showing two different types of cachet used at the "Adebar" radio station at the Szent András airbase, 1915-16 cards (2, one Feldpost) showing two different types of "K.U.K. LUFTSCHIFFER-TRUPPE/SZENT ANDR" cachet in violet. (6 items)