My wife has a small piano that was given to her over fifty years ago.We are trying to find out more about it.It is 33 inches tall,28 inches wide and has about 40 keys.It sounds like a full size piano but is not.She was told that it was used by dwarfs in vaudville shows in the early nineteen hundreds.Has just a patent pending number and a patent number.No serial or model number.How can I find out more on this.Please help.Thanks

40 keys, huh? The dwarf story is wild enough to sound plausible. I have no idea what you have, but there's a lot of smart people who read this forum. Do you have digital photos you can post?

Do a search for Tom Thumb pianos.

40 total,24 actual keys,31 inches high and 28 inches wide.I have a patent number 104957-171019 and a patent applied for number.Am working on getting some photos.Thanks for the response.