Hello, I am a teacher and pianist and I have a Canadian Doherty
pianola (automatic player piano) and I'm trying to restore this
pianola.  I need a drawing schema of connections of the piping
system of this instrument.  You can see me playing the piano in

https://www.youtube.com/watch?v=gMkYW4tkPI8
 

Thank you very much,

José Veloso Rito
Portugal

 [ A history of the Doherty company is found at
 [ Ref. http://www.thecanadianencyclopedia.ca/en/article/doherty-pianos-ltd-emc/ 
 [ -- Robbie