Michael,  I found one entry for the Conservatory Model Autopiano in the
on-line archives for "The Music Trade Review" that MBSI has compiled.
For anyone interested in checking out some history it's a great
resource.

  MTR 1916 62-26-54
  Music Trade Review - June 24th,1916 page 48
  Descriptions of exhibits set up by various companies for the National
  Trade Convention . . .
    The Autopiano Co. had a complete line of instruments on exhibition
  at 213 West Forty-third street, including the exposition model and
  conservatory model in mahogany, a Grand Prix model, in walnut and one
  in mahogany, studio model in walnut and an Autopiano Solostyle
  electric which created much interest. The Pianista was also
  displayed, Styles 12, 30 and 35 being the instruments shown.

Most of the piano makers changed case styles and renamed them every
couple of years, much like automobile makers do.

Hope this is of some interest.

Rich Schommer
Alliance, Nebraska