German local stamps made by overprinting WWII-era NSDAP stamps with 'Kreis Glauchau'. From an old-time collection formed from very old-time dealers. There's a note on another cover where the dealer describes getting the Glauchau covers as issued in the period. The 40pf (Mi41) isn't catalogued as used. Very rare. With Hohenstal-Ernstthal registration label + cancel, and Glauchau receiver.