RFI, please apologize that I interfere. What you do show is not the typical -in house- EICKHORN crossguard. Is it a WKC? This would also fit to the red washer used by WKC and not EICKHORN. I am aware (and have often seen it and have owned several of them) that EICKHORN did use WKC crossguards (and other parts). Please keep in mind that I do NOT doubt your research, on the contrary I do appreciate it and want to learn too and want to understand.
Regards,
