AUSTRIA, 1935, December 21, Rocket Flight N7 (Hopferwieser FS-44b). Card with Scott B128 Semi-Postals 5 g + 2g, tied by circular date cancel GÖSTING-GRAZ dated December 21st with violet rocket N6/27 cachet, signed Schmiedl, Very Fresh, Very Fine, Back indicates "28 flown." Very rare! Hopferwieser €3,500
