There is a three-part article, "Ringing and Ringling: Showmen's
Bells, Chimes and Related Novelty Instruments", in the COAA journal,
"Carousel Organ", issues 20, 21 and 22.  It is heavily illustrated and
footnoted, and covers: circus bell wagons and related topics; bells
on band organs; musical novelties; the only available and detailed
biography of John C. Deagan in print; the story of the Deagan Una-Fon
and the competing Edwin Street "Tango Bells" and Dan Barton's "Autola."

Cost of the three issues (containing many other interesting articles)
is $9.00 postpaid (or $6.00 by PDF format to your email address).
Payment may be made by sending a check to Ron Bopp, 4725 Montrose
Drive, Bradenton, Florida 34210 or to PayPal (COAA@swbell.net).

Ron Bopp
Bradenton, Florida