Original owner selling . Stuff done to it . Gibson humbucker was put in in the neck early 1970's The bridge pickup is stock. The guitar was professionally refinished in the late 70's at which time it was also professionally refretted. Other than the toggle switch all the other electronics (meaning the two potentiometers) have been replaced. The original volume control pot seized up and wouldn't turn in either direction and the tone control was sounding quite scratchy so they were replaced with a couple of Allen-Bradley pots.