Iron Cross 1st Class 1939 on Screwback. Type Deumer, Schinkel, Magnetic.

Iron based early Schinkel pattern and in a very good, slightly worn condition. The core with most of the black paint, the frames with patina.
Not marked but a known variation that has been attributed to the company of Wilhelm Deumer from Lüdenscheid. On large clamshell type screwplate. Magnetic.
Seldom seen early variant.