50 Heller delivery stamp, perforated L 13 1/4 : 13 1/2 : 13 1/4 in mixed franking with 3 Kc. Airmail issue always with hand stamp overprint "we are free! Plus swastika", tied by special cancel "post office Maffersdorf eighth of October 1938" on letter piece, faultless condition, issued only 50 respectively 150 examples, expertized Mahr BPP and expertise Brunel VP (2021) : "the condition is perfect. ", Michel 1.950.-