These are obvious forgeries of the propaganda stamps. Most obviously, the originals would naturally be perfed and would not be in two colors in order to appear at first glance to be the standard 12pg stamp.
The Michel catalog notes the originals were printed in sheets of 50. Michel also notes the issue was produced in ROME. The printing on the back is a too-small and incorrect imitation of the watermark of genuine stamps.
For genuine propaganda stamps, see PostmasterGS's site:https://www.germanstamps.net/tr-falsch-us-hitler/