My name is Jon Decker and my friend found this mystery guitar in a house he recently bought, serial number 39312. It is hollow, with a bigsby, and a florentine cutaway. The guitar is a shorter scale, with beautiful figuring on the neck (which looks like a 3 piece. It is in beautiful condition. My thoughts were initially a Les Paul florentine, but it it doesn't say "Les Paul" on the headstock, then because of the shorter scale I thought ES-140. The only thing that throws me off is that most ES's I see don't carry the "custom" branding and have a dog-eared P-90 instead of the the humbucker that this one has. The only thing I am fairly certain of is that it was made in 1961.
This guitar is in excellent condition.
Any help or information would be of great assistance!