Items

• [D9423AAU], Letter from Thomas Alva Edison to Philadelphia and Reading Railroad Co, John D Campbell, July 1894
  1894-07-00
• [LB059074], Letter from Thomas Alva Edison to John D Campbell, Philadelphia and Reading Railroad Co, February 6th, 1894
  1894-02-06
• [LB059089], Letter from Thomas Alva Edison to Philadelphia and Reading Railroad Co, John D Campbell, February 26th, 1894
  1894-02-26
• [LB061159A], Letter from Thomas Alva Edison to Philadelphia and Reading Railroad Co, John D Campbell, July 26th, 1894
  1894-07-26
• [LM218089], Letter from Thomas Alva Edison to John D Campbell, Philadelphia and Reading Railroad Co, October 4th, 1893
  1893-10-04