Items

Items

• 

  [D0805AAD], Letter from United States Smelting Refining and Mining Co, Herman A Prosser to Thomas Alva Edison, January 9th, 1908

  1908-01-09
• 

  [D1010AAH], Letter from Herman A Prosser to Harry Frederick Miller, April 28th, 1910

  1910-04-28
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  [D1010AAI], Letter from Herman A Prosser to Thomas Alva Edison, May 3rd, 1910

  1910-05-03