EK1 Juncker “Associated” nonmagnetic one pieces early type / factory extra curvered /

This the cross a very impressive piece, because the cross a factory extra curvered & on the back plate have a text : OREL N VII FS or ES
the pin has probably been replaced, since these early types only used a simple wire, but on this piece it is different from the others.
I also took separate pictures of the reception