A poor 1970's Gibson EB-3 that was crudely modified at some point.  The mods included adding a P pickup, active preamp, moving the rotary switch, plugging some of the controls, etc.  I ended up removing the preamp and rewiring the guitar as close to stock as I could.  The rotary switch was returned back home along with adding back one of the volume controls.  The tone choke was also long gone so I replaced it with one courtesy of Curtis Novak.  The original 2 point bridge didn't allow enough adjustment to lower the action, so a new Hipshot 2 point Supertone bridge was installed.  I will eventually group this project into one blog post, but in the meantime you can follow up here:  #eb3mystery