Does anybody know where I can find information about Baker & Troll?

I am looking for founding and closing date, company location(s), and
more.  Any information would be highly appreciated.

Marcus Pregler
Germany

  [ A good place to start is Arthur W.J.G. Ord-Hume's "The Musical Box:
  [ A Guide For Collectors, although, as is often the case with Ord-
  [ Hume, you have to piece together the information.  Baker-Troll &
  [ Co. was a Geneva, Switzerland, music box maker.  George Baker began
  [ the business in 1873.  Samuel Troll founded his own business in
  [ Geneva in 1868.  They eventually merged, later becoming Chevob &
  [ Co.
  [ --Relief Editor.