I might add a bit of sadness to your person who has that possibly
rare flute clock music cylinder [160522 MMDigest].  It's worth
nothing if there isn't a collector out there wanting it.  I have
many antiques but no collectors so they are worth zero.

Antique dealers might give you one-third of its market value so
they can make their two-thirds _if_ they think they can sell it,
otherwise they won't buy it from you.

Phyllis Poole