This is a Mills Violano Virtuoso back door which means a 44-note piano.
The unit is played by QRS solenoids driven by Klinger Electronics.  It
plays style "A" music roll files and Wurlitzer Pianino music also, plus
other roll files.  A YouTube video of it playing is at
https://www.youtube.com/watch?v=KfMYNCMvByo
 

It needs tuning and some piano technician help to maximize the way it
sounds.  This unit is not in a case and there is no violin.  Located in
Southern California, for sale for $2500.

Thank you,
Bob Smith
Murrieta, California
rawalnut46@gmail.com.geentroep [delete ".geentroep" to reply]