Items

• [D8547A], Letter from American Telephone Co Ltd, George A Mason to Samuel Insull, January 2nd, 1885
  1885-01-02
• [D8547B], Letter from George A Mason, American Telephone Co Ltd to Thomas Alva Edison, January 5th, 1885
  1885-01-05
• [D8547N], Letter from American Telephone Co Ltd, George A Mason to Thomas Alva Edison, February 10th, 1885
  1885-02-10
• [D8547O], Letter from American Telephone Co Ltd, George A Mason to Edison Electric Light Co, Samuel Insull, February 10th, 1885
  1885-02-10
• [D8547ZAZ], Letter from George A Mason, American Telephone Co Ltd to Samuel Insull, November 4th, 1885
  1885-11-04
• [D8640A], Letter from American Telephone Co Ltd, George A Mason to Samuel Insull, January 11th, 1886
  1886-01-11