50 H. Service stamp in blackish ultramarine and vivid magenta each with hand stamp overprint "we are free! Plus swastika", in better A-perforation, each neat cancelled "Liberec day the liberation 10.10.38 Heil Hitler! " on blank-envelopes, issued only each 100 piece, expertized Reibg HP and photo certificates Brunel VP (2020) : "the condition is perfect. ", Michel 1.000.-