I'm guessing it's a 15 but not 100% sure so thought I would show the length and those in the know can decide. The Butt Plate could be a P 34 but has 2 holes not the 3 that 34 has. Has 12 wires all are there. The pics have a pretty good idea of condition. Notice the #65 engraved on the butt plate. I try to describe the piece as best as I can but I'm not an expert.

Brand: Ludwig
Instrument: Snare Drum