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Walter D'Arcy Ryan 1904 General Electric Company Arc Mine Lighting Chateaugay NY For Sale
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Walter D'Arcy Ryan 1904 General Electric Company Arc Mine Lighting Chateaugay NY:
$175.00
Original 1904 General Electric Company, "Personal And Confidential" letter drafted by Walter D'Arcy Ryan, titled: "Mine Lighting" in which D'Arcy discusses the practicality of Arc Lighting that was demonstrated by experiments conducted at the Chateaugay Ore & Iron Mines at Lyon Mountain, N.Y. ~ ILLUMINATING ENGINEERING DEPARTMENT Circular Letter No. 2, dated Jan 22, 1904. ~ Three page letter with Blueprint of the referenced Mine drawn by D'Arcy, showing approximate location of different levels of shaft #14. ~ A very scarce piece of General Electric Company History, from an influential early lighting engineer, who worked for General Electric as director of it's Illuminating Engineering Laboratory. ~ This item will be superbly packaged to ensure a safe delivery. ~ All questions are welcome. ~ Thanks!
Walter D'Arcy Ryan 1904 General Electric Company Arc Mine Lighting Chateaugay NY $175.00
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