I read with interest the article about a hand punch tool for music
rolls.  I think I have one that I bought at an estate sale.

It looks like a chrome whales mouth.  It has Codman stamped on it,
plus etched by hand is Von Petz clamp 76-144 , then O.R. A.A.V.H.A.
10/26/72.  It also has what appears to be a square drive hole for
adjusting it.  Does this sound familiar to anyone?

I kept it because I'm a mechanical tech and I love tools, and it does
look odd.

Dave Brown