Auction 250 - 256 Day 4

1935: Rocket Experiment 'N 6', registered envelope addressed to Gösting, bearing red label with rocket design and N6, regular Austrian postage covered with four different stamps, three of them surcharged 'Winterhilfe' (Mi Nos.  568+613-615), cancelled "Gösting b. Graz - 21. XII. 35 - 18N", signed by Schmiedl, a very rare rocket mail item as only 27 covers have been flown, in addition a black and white photograph of the experimenter Ellington-Zwisler = $ 750/Hopferwieser Nr. 43 = € 2'500.