Items

• [D7832ZAK], Letter from Telephone Co of New York to Thomas Alva Edison, June 20th, 1878
  1878-06-20
• [D7933A], Letter from Charles Augustus Cheever to Thomas Alva Edison, January 3rd, 1879
  1879-01-03
• [D7933B], Letter from Charles Augustus Cheever to Probst (F.) & Co, June 11th, 1878
  1878-06-11