WW1 EK2 Iron Cross / Eisernes Kreuz so so called WW2 straight -9 unknown maker equivalent

I don’t collect WW1 crosses, but I make an exception for this one because although the maker is unknown, the maker of this piece is the same as the well-known WW2 “Straight-9” type

ATTENTION: the mounting cross in the last picture is not included in the advertised price, I have included it for illustration, comparison and curiosity only due to its rarity.