A National Automatic coin piano appears briefly in the Laurel and
Hardy film, "The Live Ghost", from 1934, in opening scenes. 

https://archive.org/details/swiss-miss-1938/THE_LIVE_GHOST+(1934).avi 

Dave Krall
Hammond, Indiana

 [ https://www.mmdigest.com/Attachments/25/06/07/250607_054626_L&H%20NationalCoinPiano.jpg