Items

Items

• 

  [D8410P], Letter from Johns Hopkins University to Thomas Alva Edison, November 12th, 1884

  1884-11-12
• 

  [MF12CM], Letter from Johns Hopkins University, August Herman Pfund to Thomas Alva Edison, February 20th, 1917

  1917-02-20
• 

  [MU047], Letter from Henry Augustus Rowland, Johns Hopkins University to Thomas Alva Edison, March 9th, 1880

  1880-03-09