Durrell Armstrong's list of "Top Fifty" piano brands and actions
lists four possible player mechanisms for the Leonard piano:

  1) Standard Pneumatic
  2) Simplex
  3) Autopiano
  4) Lester

All of these are fairly straightforward units to rebuild.  As for
the quality of the piano, I rebuilt a Leonard years ago, but that
information does not seem to have remained on the hard drive in my
brain.  Sorry.

Ed Gaida
egaida@txdirect.net