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which was located at 350 Fifth Avenue in New York
Front Street and Erie Avenue Philadelphia
Keywords specific to this image: Wartime
SCA3A12C23
and escaping the realities of an increasingly industrial era
1890 Article Optical Telegraphy Vintage Projecting Lantern Lamp Colonel MAB1 MX7 which was located at 350This is an original 1890 two page (1 page, double sided) article about the Optical Telegraphy, devised by Colonel Mangin, a French officer. Of the plans proposed by this officer, two were commonly used, one involving the use of lenses; and the other the telescopic system. In the first, the source of the light is a simple petroleum lamp; while the second utilizes the sunlight or electric light. Please see both images. CONDITION This 121+ year old Item
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