Souvenir sheet issue \"Praga 1938\" with handstamp overprints \"Karlovy Vary 1. X. 1938+swastika\", variety \"likewise overprinted blank field\" full original format, mint never hinged, faultless condition, issued only 85 examples - with overprinted blank field are so far only four pieces known, expertise Robert Brunel VP (2023) : \"the condition is perfect. \", Michel - .