Souvenir sheet issue PRAGA 1938 with handstamp overprints "we are free! Plus swastika" in the full original size, perfectly mint never hinged, edition 300 examples, expertized winner and photo certificates Osper BPP (2015) and Brunel VP (2021) "the condition is perfect. Souvenir sheet especially in mint never hinged condition rare", Michel 5.000.-