Items

• [D8238ZDZ], Letter from Mather and Platt to Charles Batchelor, October 25th, 1882
  1882-10-25
• [D8239ZFT], Letter from Mather and Platt, Harry Olrick to Thomas Alva Edison, November 2nd, 1882
  1882-11-02
• [D8338ZAX], Letter from Mather and Platt to Thomas Alva Edison, July 16th, 1883
  1883-07-16
• [D8437N], Letter from Mather and Platt to Thomas Alva Edison, April 4th, 1884
  1884-04-04
• [D8437P], Publication, Mather and Platt, April 4th, 1884
  1884-04-04
• [D8437ZAK0], Letter from Mather and Platt to Thomas Alva Edison, November 26th, 1884
  1884-11-26
• [D8545E], Letter from Mather and Platt to Thomas Alva Edison, February 9th, 1885
  1885-02-09
• [D8630ZAY], Letter from Mather and Platt to Thomas Alva Edison, May 28th, 1886
  1886-05-28