I have tried to put hammers back in but just do not know much about Pianos.   It is missing two brackets that hold the ends of hammer rod.

  Does work just needs someone who can reassemble it.

  A few scuffs on top .  Needs 8 screws for back.

J. Chein & CO. Piano Lodeon Mechanical Player Piano as shown . Child Sized Player Piano . This was an awesome creation by J. Chein beginning in the mid 1930's . The keyboard is actuated by a vacuum produced by an electric fan , with a rubber tube connection each key with a corresponding hole in the front of the piano's housing . The key board could also play manually . Very Complex design. I have included a video of it running . It does look nice considering it's age and does run . It measures 20 inches tall, 19 1/2 wide and 10 inches deep. 

   Comes with 3 rolls.