Items

• [E1518DCY], Telephone Message from Thomas Alva Edison to United Gas Improvement Co, William H Gartley, April 13th, 1915
  1915-04-13
• [E1518EAZ], Letter from Thomas Alva Edison to United Gas Improvement Co, May 8th, 1915
  1915-05-08
• [LB100525], Letter from Thomas Alva Edison to United Gas Improvement Co, William H Gartley, November 11th, 1914
  1914-11-11
• [LB100560], Letter from Thomas Alva Edison to United Gas Improvement Co, William H Gartley, November 13th, 1914
  1914-11-13
• [LB100661], Letter from Thomas Alva Edison to United Gas Improvement Co, William H Gartley, November 21st, 1914
  1914-11-21
• [LB101064], Letter from William Henry Meadowcroft to United Gas Improvement Co, William H Gartley, December 3rd, 1914
  1914-12-03
• [LB101082], Letter from Thomas Alva Edison to United Gas Improvement Co, William H Gartley, December 4th, 1914
  1914-12-04
• [LB103137], Letter from William Henry Meadowcroft to United Gas Improvement Co, William H Gartley, April 6th, 1915
  1915-04-06
• [LB103245], Letter from William Henry Meadowcroft to United Gas Improvement Co, William H Gartley, April 10th, 1915
  1915-04-10