Items

• [D8026ZCL], Letter from Ernst Biedermann to Thomas Alva Edison, July 28th, 1880
  1880-07-28
• [D8316AUC], Letter from Thomas Alva Edison to Societe d'Appareillage Electrique, September 9th, 1883
  1883-09-09
• [D8337ZBL], Letter from Societe d'Appareillage Electrique, Arthur Achard to Thomas Alva Edison, May 15th, 1883
  1883-05-15
• [HM830170], Power of Attorney from Thomas Alva Edison to Calvin Goddard, February 13th, 1883
  1883-02-13
• [LB012425A], Letter from Samuel Insull to Ernst Biedermann, May 25th, 1882
  1882-05-25