Eiserneskreuz 1.Klasse marked L59 by Alois Rettenmaier Real or Fake?

[RandomCollector4114]

Hello, this is my Iron Cross first class screwback type (screw missing unfortunately) the marking on the back says L59 wich should be Alois Rettenmaier, the cross is magnetic until where the core is supposed to end and looks like it has been glued.
Can someone please let me know if this is this real?

[Adrian]

Original Rettenmaier but in poor condition.

[RandomCollector4114]

Thank you very much