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Autograph letter, signed - Hannibal Goodwin--Inventor of FLEXIBLE - 1884. 
1884 - ++Letter from the Inventor of Flexible Roll Film to the Inventor of the Half-Tone++ Autograph Letter, signed, dated 19 June 1884, from Hannibal Goodwin (1822-1900) to Stephen Henry Horgan (1854-1941) concerning Goodwin's relative, Demas Barnes (1827-1882). ++Goodwin was the inventor and patentee of the first successful flexible roll film (which lead to the birth of mass-popular photography and the moving picture industry)--his company, ANSCo, sued George Eastman (who was using his own version of flexible roll film at the time of the Goodwin patent), winning a $15 million patent infringement case in 1914. Horgan was--for all intents and purposes--the first to the table with a practical form of half-tone, making reproductions of photographs for main stream popular press a reality (from about 1873-1880, the New York Daily Graphic printing the "first reproduction of a photograph with a full tonal range in a newspaper". Barnes was a successful businessman and one-term NY congressman (1867-9), who seems to have made a lot of money on popular quack medicines, one of which was a cure-all later to be known as Fletcher's Castoria. (In another letter Goodwin refers to this "medicine" as being made of nothing but squeezed corn stalks and alcohol. This is a very interesting piece of photographic history showing a connection between two great innovators in the art.
[Bookseller: JF Ptak Science Books]
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