"Guidebook of Automatic Musical Instruments"
By Bill Finch

For what it's worth on this topic, from Mr. Bowers himself:

http://www.mechanicalmusicpress.com/history/articles/eurotrip.htm

Bill Finch

(Message sent Wed, 10 Sep 2003 19:20:08 -0500 , from time zone -0500.)

Key Words in Subject: Automatic, Guidebook, Instruments, Musical