I know the collective knowledge is varied, so I am asking for a little help. I aquired this Gibson made in 1985 from a friend of a family member that has passed. I called Gibson and they are not much help. Aparently during the 80's, there were alot of experimental models rolling out. They did say this is one of the deluxe models made during one year and not many were made. I cannot find it in any book that accuratley decsribes it. Some are close but will only state 3 tone controls, this has 4. It has a Kahler trem and lock nut, 6 on a side tuners (Gibson), bound body and neck, double humbuckers (dirty fingers). I had a fella try to tell me it was a Spirit worth $200--I doubt it. Can any help?