I am trying to reconstruct an "O" roll which has seen much better days.
I have managed to come up with all missing or damaged selections.  One
remains missing.  It appears on the following Columbia Music Rolls
issues:  O-421, O-426, O-619 and O-623.

Should any of the members on this list possess any (or all!) of the
above numbers and would consider loaning your roll so I can extract the
orphan tune I am looking for, contact me off list.

Ed Gaida
San Antonio, Texas - Preserving music by punching holes in paper.