Ceborra 1722 arc welder

Hi people,
I need some info if possible. I have a fairly old Ceborra Arc welder which is in excellent working order if a bit shabby in appearance. I just downloaded the user manual having long since misplaced the original. IT is one of those infinite variable rheostat models does anyone know what the amperage output range is? and any suggestions or wiring diagram on fitting an amp meter please

Our! there is nothing on the internet, I think we need more data to be able to search, or of course a face with the welder to be able to tell.

Someone ..:cool:

Did a quick search and found the manual. It says it can do 40-140 amps.

Al