In reference to Robbie's comment in 210320 MMDigest about Amphion valve
blocks, he said that Amphion was owned by American Piano Company. I was
under the impression that Amphion was a stand-alone company, and only
_sold_ their products to piano manufacturers. Have I been wrong all
these years?

Burnley Cook

 [ Mr. Lewis B. Doman organized the Amphion Player Piano Company of
 [ Elbridge, New York, in 1896. In 1909 the company moved to larger
 [ quarters in Syracuse, New York, where the manufacture of player
 [ mechanisms for pianos began. Amphion began making Ampico systems
 [ in 1918 and by the early 1920s was totally absorbed by American
 [ Piano Company.
 [ Ref. https://mbsi.org/manufacturers/amphion-piano-player-company/ 
 [ https://www.mmdigest.com/Archives/Digests/200112/2001.12.03.01.html 
 [ https://www.amica.org/images/Technicalities/TechnicalitiesVolume6_Index.pdf 
 [ -- Robbie