NicJimBass
Flossin'? I thought your name was Munson!
Unfortunately the shaft of the push/push pot is broken, and the knob is wedged in place with a piece of wood. Hopefully it'll work fine, it certainly seems to function okay mechanically. I had a look behind, and it's a weird pot that's mounted directly to a circuit board...... Don't know his easy it'll be to find a replacement.
First off, congrats! She's a beauty! Second, I think I might know what type of pot you're referring to... I think the Music Man Bongo uses one similar... almost like a small cube that mounts to a circuit board. You can try Peavey CS first, but it may be best to post a pic here and get some help tracking one down. I was able to order one for a Bongo I used to own directly from EBMM, and I installed it myself, but the fact that it's push/pull might make it tricky to find.