cjj wrote:
The guys I know about are Paul Wilczynski and Larry Davis. I've had Paul restore a guitar for me, really nice work.
You can find Paul here:
https://www.studio-california.com/
Here's Larry's website:
https://www.davisguitarworks.com/
You can find Paul here:
https://www.studio-california.com/
Here's Larry's website:
https://www.davisguitarworks.com/
That's crazy! 
My name is Larry Davis too. LolI discovered that the bass needed some new electronics including a new bridge pickup. I felt I was going to be in deeper than I wanted to be, so I sold it to a small shop here for $350. I had taken all the hardware off, cleaned it up as good as I could and even steel wooled the frets. So, I got to love on it for a couple of days, then made $100 on it. The buyer assured me he'd repair the electronics and make it a player - even though there's still the issues with the wood. Anyway I think everyone is happy now.
Oh, and you were correct, they found some codes on...either the pots or pickups...I don't remember, and it was a '74.
Thank you and tell your friend Larry Davis that Larry Davis from Texas says hello.