In the 130514 MMD Larry Schuette asks about building a transparent
model of a player piano action to demonstrate how a player piano works.
The Kit Carson Carousel, Burlington, Colorado, has a museum in its
carousel building that demonstrates and interprets much about the
carousel and its Wurlitzer style 155 (Monster) band organ.

Part of the band organ display includes just such transparent working
models to show how music rolls are read and how the music is made.
The models were made by Art Reblitz.  This link gives only a tiny
glimpse of the Kit Carson Carousel's band organ exhibit:

  http://www.kitcarsoncountycarousel.com/exhibits.html 

I remember seeing detailed pictures of the models that Art made, but
I can't now remember whether they were on the Internet or in some
publication.  Perhaps Art will respond here, but I understand that his
calendar is very full right now with meetings he must attend and tours
he is committed to give.

Matthew Caulfield
Irondequoit, New York