In transcribing a book about the history of Grand Rapids, Michigan for the Kent County Michigan GenWeb Project, I came across the following entry and thought it might be of interest to the necronauts. Is this the same as a regular telephone? Seems like it's different -- regular phones are described above? Any thoughts or input?
THE ACOUSTIC TELEPHONE.
The Willard acoustic telephone was an instrument invented and patented by Henderson Willard, and in November, 1880, The American Private Line Telephone Company was organized in this city for its manufacture and sale. It is not electric; is used only in short, independent lines, and depends upon molecular vibration for the transmission of sound. Thomas W. Peck was President, E. F. Harrington Vice President, and M. S. Crosby Secretary and Treasurer of the Company. It has not been pushed. The management was afterward placed in the hands of C. R. Brown, of St. Ignace. "