EKI maker ID help

[ynot]

Hello,

This 800 marked vaulted EKI arrived today and I was wondering (hoping) if anyone could tell the maker.

Thanks for your help.

Tony

[ynot]

reverse

[ynot]

800 mark

[ynot]

I found a maker mark on the underside of the pin and don't recognise it. I've tried to take a pic but unfortunately it doesn't show much.

The mark looks like a back to front R when the pin is horizontal or a D with a couple of scratches to the left hand side when viewed vertically.

Any help is much appreciated.

Tony