Air Mail cover 1898 (3 Sept.) Tepser Balloon picture postcard (Diezel & Langer No.4) and addressed to Austria, bearing Envelope type 2f. and tied by "BOBA/CSAKTORNYA" c.d.s., with framed "ZALA-EGERSZEG P.U." landing cachet and "WIESELBURG" arrival c.d.s. adjacent; Very rare, only thirteen such examples are thought to exist. Photo