It's Les Paul Jr in crap condition. It's missing the pick guard, and looks like a home paint job, although I can't be sure from the quality of the photo. It looks like a single Seymour Duncan pickup with what might be split coil switch. This would have been installed aftermarket. I wouldn't even give you $100 for it, but if it's a true Gibson (as opposed to Epiphone or a knock-off) somebody is probably willing to give a couple hundred just for the name. Gibson is a big name, but it's only got one pickup, is a budget model, and is only in fair condition.