Picked this up a week back and just had a chance to take it apart for clues. For those that have not seen them before, Maestro is/was a sub-Epiphone brand Gibson used on Guitars sold through WalMart and other box stores. They made LP and SG single pickup models as well as an acoustic. Per the guy I bought it from, this would have been a prototype for a Non-Reverse Firebird model they never released. Pulled it apart today, looking for any clues or markings that might back up the story, but the closest I got was a potential "3" on the neck heel. Routed for a single humbucker, which has no markings and is medicore sounding. In short, it's kind of a piece of crap as it sits, but there's promise. Under 6lbs, but ridiculously neck heavy, Absolutely needs straplocks. Tuners are terrible, gritty and hard to turn. Nut is terrible, plastic and doesn't let the strings move freely. Wrap-around tailpiece is a wrap-around, might be worth swapping for an adjustable. It does have a belly cut but would probably benefit from a forearm contour as well, even if not true to the original. But overall it is playable and should be pretty good with new strings and a proper setup.