hydraulic slave cylinder identification...

can anyone id this brake cylinder..?

old school hydraulic conversion on oe front disc.
done in the 90s at least, if not before.
It is leaking, I can probably get a new seal, but not sure if bore is too worn...
So, ideally a new replacement of the same...
[otherwise could enlarge cylinder bore and have another piston made..?]
don't think it's an MB one, Taffspeed maybe...?
thanks

old school hydraulic conversion on oe front disc.
done in the 90s at least, if not before.
It is leaking, I can probably get a new seal, but not sure if bore is too worn...
So, ideally a new replacement of the same...
[otherwise could enlarge cylinder bore and have another piston made..?]
don't think it's an MB one, Taffspeed maybe...?
thanks