50 H. To 20 Kc. "airplanes over landscapes" with overprint "we are free! Swastika", where it different types gives are following included: 23Aa, 24Ac, 25Ab, 26Ab and 27A, 50 H. And 1 Kc. One above the other hung - according to certificate insignificant, in perfect condition mint never hinged - in this quality extremely rare, issued only approximate 200 sets, photo expertize Osper (2014) : "genuine and immaculate. ", Michel 3.850.-