potentiometer Colvern old model id

[Elfix]

I have an autopilot on a boat from 1980 Theres a problem with a potmeter it`s marked
Colvern
22061 / 2473
585RJ
7921.B2021
This id does not tie in with the present Colvern markings, anyone know what the numbers represent?

 

[Martaine2005]

Hi Elfix
You are right, those numbers bring zero results.
However, it was an English company and I have phoned the owners that took over.
They do have stock and possibly an equivalent if not.
He said the 585R is probably the ohms value and J is the tolerance.

But he would need to see pictures Top, side and bottom.
Email them too:
[email protected]

Hope that helps.
Martin.