Items

• [CK602AAT], Letter from University of Pennsylvania, Arthur Julius Wood to Thomas Alva Edison, January 11th, 1912
  1912-01-11
• [E1750AA], Letter from University of Pennsylvania, Edgar Fahs Smith to Thomas Alva Edison, May 5th, 1917
  1917-05-05
• [E1750AB], Letter from University of Pennsylvania, Edgar Fahs Smith to Thomas Alva Edison, May 24th, 1917
  1917-05-24
• [E1750AC], Letter from University of Pennsylvania, Edgar Fahs Smith to Thomas Alva Edison, June 14th, 1917
  1917-06-14
• [E1848AA], Letter from University of Pennsylvania, Edgar Fahs Smith to Thomas Alva Edison, January 4th, 1918
  1918-01-04