Items

• [D0501ABH], Letter from Continental Caoutchouc Co to Thomas Alva Edison, December 11th, 1905
  1905-12-11
• [D0601AAD], Letter from Continental Caoutchouc Co to Thomas Alva Edison, April 14th, 1906
  1906-04-14
• [D0621AAL], Letter from Continental Caoutchouc Co to Thomas Alva Edison, June 20th, 1906
  1906-06-20
• [D0621AAO], Letter from Continental Caoutchouc Co to Thomas Alva Edison, June 28th, 1906
  1906-06-28