I have a Mann AJ 688 from 80’s.
I friggin love the thing.
Sounds and plays great.
I took the original volume and tone knobs off, however and put shotgun shell ones on, though I still have the original knobs.
Everything else on the git is original.
here.
mines on the left.
http://www.mannguitars.com/catalogs/80s/page7.png