3rd Reich DAF Tag der Arbeit 1936 abzeichen

In a very good condition a Tag der Arbeit 1st May tinnie. Frontside: Sword, hammer and plow. 1.Mai 1936 Eagle with swastika inside a wreath. Backside: Safety pin. Very rare markings Jnnun G Sch w. Gmünd B . The last stands for the city Schwäbisch Gmünd Jnnung G is not known maker.