Hi Gerry,
That's interesting. Your meter looks a lot older than mine. I think the Magnavox label is actually an asset number confirming that
Magnavox owned the meter and to deter theft. A nice historic artefact.
Yes, it would be good to see more photos of your meter. If you PM me your e-mail address, I will send you what I've got - a very brief user guide and specification plus circuit, which originally came from Bill, plus my notes.