Postal stamps service stamp 1938 with overprint "we are free! " in rare mixed perforation, fresh colors and in perfect condition on beautiful letter pieces with two ring cancel "Liberec eighth of October 1938. ". The total print run amounted to be on only 100 sets. In mixed perforation are only a few sets have become known. By Michel catalogue undervalued! Expertized Mahr BPP, photo expertize Brunel VP.

DT.BES.II.WK. (Image)