Items

• [D0013AAJ1], Letter from Martin Schwerin to Thomas Alva Edison, April 27th, 1900
  1900-04-27
• [D0013AAR], Letter from Martin Schwerin to Thomas Alva Edison, May 16th, 1900
  1900-05-16
• [D0013AAS], Letter from Martin Schwerin to Thomas Alva Edison, May 17th, 1900
  1900-05-17
• [D0013AAW], Letter from Martin Schwerin to Thomas Alva Edison, August 28th, 1900
  1900-08-28