EK1 Iron cross / Eisernes Kreuz Gebr. Godet & Co. not regular with disc type

I am offering this ORIGINAL EK for sale
EK1 Iron Cross Gebr. Godet & Co. not regular with disc type
Manufacturer: Gebr. Godet & Co.
This the cross a known early type Godet type ,
The cross is slightly curved,but and not regular piece, because since on the back plate have so called interesting disc
Presumably a war conversion piece, as the style of the screw nuts corresponds to this era, not a recently made or new style screw & screw nut type.