Hi Ray,  I must echo the sentiments of Nicholas Simons as to the value
of the orphan cylinder for a Joseph Schumacher Flute Clock.  Having
collected information about flute clocks for many years and restored
several, I am not aware of any standardization.  There are variations
in the number of pipes, the arrangement of pipes, the number of tunes,
the spacing of the keys/pins, the scale of the music, and a couple
other things.

Although I did find his name in a couple of references, it appears
that Schumacher was a minor player in Furtwangen so he probably made
very few clocks per year.  So the chances of finding one that matches
all the parameters of your barrel is very small.  Then again, "you
can't win if you don't play" so it's not unreasonable to put the word
out and see what happens.

The most likely place to try is a museum in Europe, especially in south
west Germany, like the clock museum in Furtwangen.  I know that the
museum in Utrecht, Netherlands, has a number of flute clocks so that
might be another place to look for a buyer.

As to the value, it depends on where you sell it.  If you are fortunate
enough to find a museum or person who has a matching clock, you might
get several hundred dollars for your barrel in its original case.
Unfortunately, most clocks already have at least one barrel surviving
so having a spare is really a luxury.

And museums aren't likely to have money to spend on a barrel they don't
really need.  In most cases, they don't have any extra money to spend
-- period!  Your most positive result (maybe $1000+) would be to find
a matching clock without a barrel, I suppose it's possible, but it is
really unlikely. (And how would you know it matches without taking it
there to try it.)

In other than these cases above, that barrel is just an interesting
curiosity so you might get $100 at an antique sale.  If I were in your
shoes, I think I would look for a museum that has a similar flute clock
and donate it to them for the tax write-off.  Since the clock itself
has its barrel hidden inside, your barrel would make a good educational
display to show how the music is stored -- its "hard drive" so to speak!

Regards,
Craig Smith