I did a lot of work for some of the Vintage Guitar Shows all over America.
We could tell you what kind of band the last owner was in by the belt buckle rash.
If the rash was from the bottom to the middle of the body it was a country player because they wear their guitars high.
If the rash was from the top to the middle of the body it was a rock player because they wear their guitars low.
We called them Ropers and Dopers.
If it has no rash it was a jazz cat because they have so many chords to play they have to sit down.