Items

• [D7713A], Letter from Charles Wager Hull, American Institute to Thomas Alva Edison, August 9th, 1877
  1877-08-09
• [D8744AAA], Letter from Charles Wager Hull, American Institute to Thomas Alva Edison, September 7th, 1887
  1887-09-07
• [D8744AAB], Letter from American Institute, Charles Wager Hull to Thomas Alva Edison, September 19th, 1887
  1887-09-19
• [D8744AAC], Letter from American Institute, Charles Wager Hull to Thomas Alva Edison, October 5th, 1887
  1887-10-05
• [D8744AAE], Letter from Charles Wager Hull, American Institute to Thomas Alva Edison, December 20th, 1887
  1887-12-20