I acquired this guitar yesterday in a trade, but have no clue what it is. My best guess is that it's probably Japanese, pretty old and an obvious SG copy. It has holes drilled in the body that seem to indicate either a Bigsby-esque trem or some type of backplate. Also, the neck is a bolt-on, not glued in. The only identifier that I can find is the sticker on the back of the headstock that reads: 559 - 1412. Any ideas?