I am restoring a Mandolina paper roll organ that has had the bleeds on
the valves altered making some of the notes unresponsive.  I would like
to know the correct bleed diameter used for the valves in a Mandolina or
Celestina organette.  Is there a source for the paper bleed discs used in
these organs?  This would save me a lot of trial and error work.  Can any
one help me?

Thanks,

Dave Ingalls