Remington Steelmaster S8 Tone and Volume controls

[Carl Butler]

Maybe I’m slow, but the guitar I just purchased through this forum has me baffled.
I am not a newbie electric guitar player, but the tone and volume controls on this one interact so much that I cannot tell which one is the “real” volume control.. Anyone out there that can give me a hint?
It’s a 10 year old Remington Steelmaster S8 I’m playing it through my old faithful Peavy Delta Blues 30 w 15” speaker.. Put a new set of C6 strings on it and it sounds great..
I did notice that I had to snug up all the lock nuts on the tuners .. Every string I removed, the tuner started to wobble... Looks like this one was never played... Came with picks and a tone bar still in the wrapper...
Anyway, the tone and volume controls have me stymied...

Thanks for any advice