Items

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Items

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  [CJ503AAI], Letter from U.S. Geological Survey, David Talbot Day to Thomas Alva Edison, August 22nd, 1901

  1901-08-22
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  [CJ503AAW], Letter from U.S. Geological Survey, David Talbot Day to Thomas Alva Edison, September 6th, 1901

  1901-09-06
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  [CJ503ABA], Letter from U.S. Geological Survey, David Talbot Day to Thomas Alva Edison, September 23rd, 1901

  1901-09-23
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  [CJ503ABS], Letter from U.S. Geological Survey, David Talbot Day to Thomas Alva Edison, October 15th, 1901

  1901-10-15
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  [CJ506AAR], Letter from U.S. Geological Survey, David Talbot Day to Thomas Alva Edison, October 19th, 1904

  1904-10-19
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  [D0225AAB], Letter from U.S. Geological Survey, David Talbot Day to Thomas Alva Edison, August 16th, 1902

  1902-08-16
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  [D0225AAC], Letter from U.S. Geological Survey, David Talbot Day to John F Randolph, August 25th, 1902

  1902-08-25
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  [D0506ACC], Letter from U.S. Geological Survey, George Frederick Kunz to Thomas Alva Edison, December 4th, 1905

  1905-12-04
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  [D0726AAF], Letter from U.S. Geological Survey, Frank L Hess to Thomas Alva Edison, May 2nd, 1907

  1907-05-02
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  [D0805AAA], Letter from U.S. Geological Survey, Henry Clay Rizer to Thomas Alva Edison, January 2nd, 1908

  1908-01-02
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  [D1010AAQ], Letter from U.S. Geological Survey to Harry Frederick Miller, May 13th, 1910

  1910-05-13
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  [D9333AAJ], Letter from U.S. Geological Survey, Jay Baclus Woodworth to Thomas Alva Edison, November 15th, 1893

  1893-11-15
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  [E1160BG], Letter from U.S. Geological Survey, Henry Clay Rizer to Thomas Alva Edison, April 29th, 1911

  1911-04-29
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  [E1160BV], Letter from U.S. Geological Survey, Henry Clay Rizer to Harry Frederick Miller, May 24th, 1911

  1911-05-24
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  [E1518LCB], Letter from U.S. Geological Survey, Carl Eugene Lesher to Thomas Alva Edison, December 21st, 1915

  1915-12-21
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  [E1616DAL], Letter from U.S. Geological Survey, Philip Sidney Smith to Thomas Alva Edison, April 8th, 1916

  1916-04-08
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  [E1616FAS], Letter from George Otis Smith, U.S. Geological Survey to William Henry Meadowcroft, June 9th, 1916

  1916-06-09
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  [E1556BD1], Letter from U.S. Geological Survey, George Otis Smith to Thomas Alva Edison, November 16th, 1915

  1915-11-16
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  [E1664ABQ], Letter from U.S. Geological Survey, George Otis Smith to Edison (Thomas A.) Inc, January 25th, 1916

  1916-01-25
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  [E1717BT], Letter from U.S. Geological Survey, Carl Eugene Lesher to William Henry Meadowcroft, May 17th, 1917

  1917-05-17
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  [E1717BU], Letter from U.S. Geological Survey, George Otis Smith to William Henry Meadowcroft, April 27th, 1917

  1917-04-27
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  [E1857BK], Letter from U.S. Geological Survey, Henry Clay Rizer to John Jarvis Butler, U.S. Navy Dept, December 2nd, 1918

  1918-12-02
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  [E1857BV], Letter from Henry Clay Rizer, U.S. Geological Survey to Thomas Alva Edison, December 12th, 1918

  1918-12-12
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  [E1922BV], Letter from U.S. Geological Survey, Henry Clay Rizer to William Henry Meadowcroft, June 16th, 1919

  1919-06-16
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  [E1947AJ], Letter from U.S. Geological Survey, George Otis Smith to Thomas Alva Edison, February 19th, 1919

  1919-02-19
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  [MF36AL], Letter from Henry Clay Rizer, U.S. Geological Survey to William Henry Meadowcroft, June 11th, 1918

  1918-06-11
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  [MF48BH], Letter from U.S. Geological Survey, Philip Sidney Smith to Thomas Alva Edison, March 19th, 1919

  1919-03-19