Greetings all,  I am wondering if anyone can shed any light on an
obscure roll and reproducing system.  The roll label reads:

  Manualized Player Music
  B-322
  75c
  BUTTERFLY
  Op. 43 No. 1
  Grieg
  Copyrighted 1915
  The Baldwin Piano Co

It appears to be identical to the Welte T100 roll no. 1275, played
by Grieg, with same number of key strokes, detailed (identical?)
expression on the sides of the roll.

Did Baldwin make an expression/reproducing piano?  What was it called?
Was there a licensing agreement between Welte and Baldwin for roll
publication?  Does anyone have any rolls issued by the Manualized
Player Music Company?  If so, could you enlighten me and other MMDers?

Given the copyright date, this would likely have occurred at the
beginning of the Great War, before America's entry in 1917.  Any
information would be very appreciated.

John McClelland