Souvenir sheet issue "Masaryk with child" with hand stamp overprint "we are free! Plus swastika", used with special cancel "Liberec 1 German Reichspost 8. X. 1938 Heil Hitler! " on blanko-envelope, due to the low issue from only 40 copies very rare! Expertized Mahr BPP and Richter as well photo expertize Robert Brunel VP (2020) : "the condition of the souvenir sheets is perfect. ", Michel 6.500.-