Souvenir sheet issue \"Masaryk with child\" with typography overprint \"4, 50 Kc\", original size, mint never hinged, faultless condition with manufactured dark inclusion in the sheet margin, there are only issued 10 examples, us is no further copy in mint never hinged condition known, expertized Dr. Dub, Mahr BPP and expertise Robert Brunel VP (2023) : \"the condition is perfect. \", Michel - .