[HBR] Changing the scale on a Weston 301 panel meter

[Chris Howard w0ep]

Does anyone here have a pointer to either online or written
info about how to change the scale piece on a Weston 301 panel meter?

Also, the internal shunt, if there is one?

I inherited a box of parts from an old-timer and included
were a handful of meter scales, all from Weston 301s and
I happen to have a few 301s in my own accumulation.

I guess if all else fails I can start taking one apart...

Chris
w0ep