I rediscovered this in my inventory, and I think it's a 65-note test
roll.  The paper is 11-1/4" wide, mounted on a 3-3/8" I.D. cardboard
core; no spool ends.  Glued inside the bass end of the core is a 1/4"
dowel, 1-1/2" long.  The spacing of holes in the paper looks like
65-note, and the punchings look to correspond with note tests,
repetition, etc.  Does this sound right?

Skip Downing