Items

• [D8230ZBU], Letter from Francis Robbins Upton to Thomas Alva Edison, August 21st, 1882
  1882-08-21
• [D8713ABT], Letter from William Hamilton to Thomas Alva Edison, December 22nd, 1887
  1887-12-22
• [MU119], Letter from Edison Lamp Co, Francis Robbins Upton to Thomas Alva Edison, December 9th, 1887
  1887-12-09
• [NS87AAH], Technical Note, Thomas Alva Edison, May 18th, 1887
  1887-05-18
• [NS87AAI], Technical Note, Thomas Alva Edison, May 28th, 1887
  1887-05-28
• [NS87AAM], Technical Note, Thomas Alva Edison, June 7th, 1887
  1887-06-07
• [NS87AAO], Technical Note, Thomas Alva Edison, June 10th, 1887
  1887-06-10
• [X001G2AZ], Technical Note, Unknown, Thomas Alva Edison, June 11th, 1881
  1881-06-11
• [X0980A] Reminiscence, William Joseph Hammer, Undated
• [X098A002A] List, Undated
• [X098HC11] List, Undated