1929, 4. Switzerland flight, droped Zurich, photo postcard with 15 Pfg. eagle with on board cancellation mark from 2.10. And Switzerland 35 C. airmail stamp with stamp "Zurich 8 (FLUNERN) 2. X. " as well alongside stamp "Zurich airfield airmail 2. X. ", addressed to Germany, all postmarks on face, superb