Items

• [D8833ACZ], Letter from Francis Robbins Upton to Thomas Alva Edison, December 19th, 1888
  1888-12-19
• [E1166AM], Letter from Isaac Henry Silverman to Thomas Alva Edison, June 3rd, 1911
  1911-06-03
• [LB027534], Letter from Alfred Ord Tate to Edison Lamp Co, Francis Robbins Upton, December 27th, 1888
  1888-12-27
• [MU114], Letter from Francis Robbins Upton, Edison Lamp Co to Thomas Alva Edison, December 2nd, 1887
  1887-12-02
• [X120CBM], Letter from Frank Julian Sprague to Sprague Electric Railway and Motor Co, April 29th, 1890
  1890-04-29