Items

• [D8958ABD], Letter from Emil Quellmalz to Thomas Alva Edison, December 19th, 1889
  1889-12-19
• [D9004AAP], Letter from Emil Quellmalz to Thomas Alva Edison, January 28th, 1890
  1890-01-28
• [D9102ABT], Letter from Emil Quellmalz to Thomas Alva Edison, April 23rd, 1891
  1891-04-23
• [D9102ABX], Letter from Emil Quellmalz to Thomas Alva Edison, May 21st, 1891
  1891-05-21
• [D9102ADX], Letter from Emil Quellmalz to Thomas Alva Edison, December 8th, 1891
  1891-12-08