Items

Items

• 

  [E1537AV], Letter from Charles Ferdinand Roth, National Exposition of Chemical Industries to Thomas Alva Edison, August 12th, 1915

  1915-08-12
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  [E1537AW], Letter from Charles Ferdinand Roth, National Exposition of Chemical Industries to Thomas Alva Edison, August 20th, 1915

  1915-08-20
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  [E1537AZ], Letter from National Exposition of Chemical Industries, Charles Ferdinand Roth to Thomas Alva Edison, September 3rd, 1915

  1915-09-03
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  [E1637AF], Letter from National Exposition of Chemical Industries, Charles Ferdinand Roth to Thomas Alva Edison, William Henry Meadowcroft, June 19th, 1916

  1916-06-19
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  [E1637AG], Letter from Charles Ferdinand Roth, National Exposition of Chemical Industries to Thomas Alva Edison, William Henry Meadowcroft, July 20th, 1916

  1916-07-20
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  [E1637AI], Letter from Charles Ferdinand Roth, National Exposition of Chemical Industries to William Henry Meadowcroft, Thomas Alva Edison, October 5th, 1916

  1916-10-05
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  [HM55BW], Letter from Charles Ferdinand Roth, National Exposition of Chemical Industries to William Henry Meadowcroft, October 13th, 1916

  1916-10-13