Items

• [D8317D], Letter from Ball Engine Co to Thomas Alva Edison, October 12th, 1883
  1883-10-12
• [D8317E], Letter from Ball Engine Co to Thomas Alva Edison, October 17th, 1883
  1883-10-17
• [D8317H], Letter from Ball Engine Co to Thomas Alva Edison, November 6th, 1883
  1883-11-06
• [D8317I], Letter from Ball Engine Co to Thomas Alva Edison, November 9th, 1883
  1883-11-09