Items

Items

• 

  [D0809AAR], Letter from Frank Lewis Dyer to Harper and Bros, Frederick A Duneka, October 5th, 1908

  1908-10-05
• 

  [D0909AAS], Letter from Frank Lewis Dyer to Harper and Bros, James Ripley Wellman Hitchcock, June 3rd, 1909

  1909-06-03
• 

  [D9211AJH], Letter from Thomas Alva Edison to Harper and Bros, November 29th, 1892

  1892-11-29
• 

  [E1763AG], Letter from West Orange Laboratory to Harper and Bros, June 6th, 1917

  1917-06-06
• 

  [LB116291], Letter from Thomas Alva Edison to Harper and Bros, March 2nd, 1917

  1917-03-02