In going through my latest supplemental book catalog from Edward R
Hamilton Bookseller, I came across the following: "Automatic Pianos,
A Collector's Guide to the Pianola, Barrel Piano, & Aeolian
Orchestrelle," by Arthur W.J.G. Ord-Hume.

The book relates the development of the automatic piano from its
earliest times, starting with the spring-powered dulcimer-playing
musical clocks of the 16th century, through the once-popular barrel
playing pianos and street pianos, to the great era of the reproducing
piano.  Well illus., some color, 504 pages, Schiffer 8-1/4 x 11, pub.
at $89.95; item number 4157621 at $69.95.  From

  Edward R Hamilton Bookseller
  Falls Village, CT 06031-5000
  EdwardRHamilton.com

Don't forget to add $3.50 for shipping/handling, one book or a dozen.

Glen Perye