I have a question regarding O orchestrion rolls. I have several rolls.
One has spool flanges right on the roll. The rest are spooled on a
cardboard roll with a keying device but have no flanges. Were there
"take-apart" spool flanges for these similar to the take-apart spools
for Violano Virtuosos ?  Does anyone know a source for these flanges ?

Thanks,
Bob Conant