Does anyone have information about the New Scale Williams (vertical) "harmonic tone prolonging bridge"? I have a New Scale Williams, Oshawa, Canada, #24116, 1908. I have the book on the history of the Williams Co., (Under the Sign of the Big Fiddle), and there is no mention of this bridge. Also, I can't find anything on the internet.
It's sort of a capo bar, cast into the plate. At first I thought this was just piano company marketing, until I realized it has a very long sustain! It is possible this is a prototype, and the bridge was dropped from manufacturing due to the added cost.
Tom Levings, RPT