Beschreibung:

AMERICAN INVENTORS: Elisha Gray (1835-1901) American Electrical Engineer, remembered for his development of a telephone prototype in 1876 and considered by some as the true inventor of the telephone ahead of Alexander Graham Bell Gray is also considered to be the father of the modern music synthesizer. Vintage signed sepia cabinet photograph of Gray in a head and shoulders pose. Photograph by Gentile of Chicago and bearing their imprint to the lower mount and verso. Signed by Gray in dark fountain pen ink to the lower photographer's mount; Amos Dolbear (1837-1910) American Physicist & Inventor, remembered for his invention of a system for transmitting telegraph signals without wires in 1882. Vintage signed sepia cabinet photograph of Dolbear in a head and shoulders pose. Photograph by J. W. Black & Co. of Boston and bearing their imprint to the verso. Signed by Dolbear in dark fountain pen ink to the lower photographer's mount; Douglass Ottinger ( - ) American Captain with the United States Revenue Marine, credited as the inventor of the Life Car. Vintage signed sepia cabinet photograph of Ottinger in a half length pose wearing an official overcoat. Photograph by W. A. Morand of Erie, Pennsylvania and bearing his imprint to the lower mount. Signed by Ottinger with his name alone in fountain pen ink at the head of a printed biography to the verso. With a couple of pencil and ink annotations in another hand to the upper edge of the verso. An unusual grouping of signed cabinet photographs. Some light age wear and minor foxing and staining, G (2) to about