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Is the coil in the meter still functioning, and is there any damage to it of the bearing surfaces?
Yes, it works, Nothing other then the dial and spring are broken
Is the plastic lens covering the meter intact?
Cracked, small piece missing but otherwise fine
The spring could be replaced from a meter of comparable size. It's anchored at the center pin and the other end connects to base of the meter usually through a wedge pin. On the face of the meter there's a spreader that the spring is fed through for meter adjustment.
Oh ok, Thank you however I would likely need a diagram on how to thread it like with the spereader.
The needle could be made out out of some very fine wire or brass shim stock and shaped.
*Of note some things had to be deleted due to text size
One of comparable size in a Multimeter, VTVM or a old CRT tester might work.
Are there any markings on the back of the meter like 50, 100, 200 uA?
Not to my knowledge.
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