There are many telphone related patents issued and no actual hardware was ever found; this was true about the US Patents with the numbers 596'834, issued on January 4, 1898, and the consecutive numbers 624'696, and 624'697, both issued on the same day, May 9, 1899, untill this telephone was found to prove that it was actually manufactured. The serial number of 32 is an indication that there where not many made.
This candlestick telephone with the novel form of transmitter patented by Spencer and Keyes was manufactured by the the Spencer Electrical Company, 163 Greenwich Street, New York City, N.Y.
A description of the novel transmitter, published in the Electrical World and Engineer, Volume 34, page 248, states: “The object of the invention is to avoid metallic vibrations, only the intended actual sound being properly transmitted. To accomplish this result, Mr. Spencer employs novel means of supporting the diaphragm,” read more>>
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