Here's an image of a 1976 advertisement showing the Duo/Art player piano
and some specifications.  This may be of interest to those who have not
come across this piano.  At the bottom is

   Duo/Art - A Division of Aeolian Corporation, Memphis, Tennessee
          the world's largest exclusive manufacturer of pianos


Al Pebworth
Pebworth's Player Piano Center
Home of "Yesterday's Music"
http://www.pebworths.com/

 [ Thanks, Al, that's a nice image.  We'll place it in the MMD Gallery
 [ at the pictures site.  -- Robbie