50 H. Till 20 Kc. "airplanes over landscapes" with overprint "we are free! Swastika", where it different types gives are following included: 23Aa, 24Ac, 25Aa, 26Ab and 27A, the value to 10 coronas with overprint error IV "coating of the W from we broken" ( 100 %), in perfect condition mint never hinged - in this quality extremely rare, issued only approximate 200 sets, photo expertize Brunel VP (2017) : "the condition is perfect. ", Michel 3. 550.- additional charge for overprint error = 4. 150.-