The Chicago based QRS-Devry Corporation, founded by Melville Clark in 1900, played an important role in developing the player piano.  During the 1920s they began making the musical toys known as ‘Playasax’ and ‘Clarola.’  The concept was to make a free-reed instrument in the shape of a musical instrument.  A metal hand crank was used to move the perforated paper roll (much like the player piano) over the front of the instrument, while you blew into the mouth cap.
Patented in 1924 by a French manufacturer Couesnon, was another free-reed toy instrument resembling a saxophone called the ‘cousenophone,’ also known as the ‘goofus.’  The reeds inside the mouthpiece cap vibrates when the player blows and presses the desired keys.  Some may describe it as a mouth-blown accordion.  While shaped like a saxophone, which is monophonic, the ‘couesnophone’ is a polyphonic instrument with more than one sound produced simultaneously.
From France and Germany came more free-reed toy instruments.  The German company, Hohner Musikinstrumente, who for over a century are identified especially with harmonicas and accordions, used keys similar to a button accordion rather than a piano-like keyboard.  Since these instruments were windblown, you could play two different pitches.  One pitch when air is blown in and another pitch when air is drawn.