Vintage Ludwig 60's 70s 14" or 15” Snare Drum 12 Wires & Butt Marching Snare

Here is a Vintage Ludwig 60's 70s 14" or 15” Snare Drum 12 Wires & Butt  Marching Snare.  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.  If you know the number of the butt plate please let me know..  Thanks