Martin 2-15 Mandolin $700

This is a mid 60s Martin 2-15. Relatively new Thomastik Starks are currently on it. Sounds great & plays incredibly easily. There's something between a buzz and dead spot on the 10th & 12th (not the 11th) frets of the G course. No obvious culprit. I don't think about it because I don't play that high up on the G course. Comes with hardshell case in the picture. $700.