Items

• [X001G2AQ], Technical Note, Unknown, January 8th, 1881
  1881-01-08
• [X001G2AT], Technical Note, Unknown, Thomas Alva Edison, January 13th, 1881
  1881-01-13
• [X001G2AU], Technical Note, Unknown, Thomas Alva Edison, January 13th, 1881
  1881-01-13
• [X001J6F], Reminiscence, Henry Alexander Campbell, July 11th, 1929
  1929-07-11
• [X098A002A] List, Undated
• [X098HC11] List, Undated
• [X112CAV], Report from Dun (R.G.) & Co, December 18th, 1883
  1883-12-18