Souvenir sheet issue Masaryk with child with hand stamp overprint "we are free! Plus swastika", perfectly mint never hinged, issued only 20 examples, expertized Dr. Hoerr and photo expertize Brunel VP (2019) : "the condition is perfect. Due to the low issue from according to Dr. Hoerr only 20 copies is very souvenir sheet very rare. ", by Michel without valuation, only two mint never hinged examples known