[ Ref. Lee Rothrock in 200627 MMDigest ]

Hi,  That's a trumpeter clock on the wall and it plays about 6 pipes
from a small cylinder.  And, yes, they are reed pipes, specifically
"free" reed pipes (like in accordion or mouth organ), not beating reeds
like in a band organ.

Each pipe has a small resonator in the shape of a trumpet.  They are
very hard to make because of the close tolerances required and low
pressure air supply.

Regards,
Craig Smith