Hi Bill,  You might want to see the carousel at the Columbus Zoo
http://www.columbuszoo.org/ . The carousel and band organ were recently
restored.  Also, you might be able to contact Ken Smith in Blacklick,
Ohio (a Columbus suburb), who is a band organ builder.

Stinson Band Organs http://stinsonbandorgans.com/ is in Bellefontaine,
Ohio.  You will probably have to make arrangements if you want to visit
Stinson.

Mickey Sadler
Dublin, Ohio