Items

• [D0505ABE], Letter from Paul Berthold to Thomas Alva Edison, April 18th, 1905
  1905-04-18
• [D0605AAG], Letter from Paul Berthold to Thomas Alva Edison, July 14th, 1906
  1906-07-14
• [D0605AAH], Letter from Paul Berthold to Thomas Alva Edison, August 13th, 1906
  1906-08-13
• [D0605AAL], Report from Paul Berthold, October 4th, 1906
  1906-10-04
• [D0605AAR], Letter from Paul Berthold to Thomas Alva Edison, November 20th, 1906
  1906-11-20
• [D0804AAE], Letter from Paul Berthold to William Edgar Gilmore, February 12th, 1908
  1908-02-12
• [D0843AAA], Letter from Bergmann Elektricitats Werke, Paul Berthold to Thomas Alva Edison, March 19th, 1908
  1908-03-19
• [E1217AD], Letter from Paul Berthold, Deutsche Edison Akkumulatoren Co GmbH to John Ferreol Monnot, January 13th, 1912
  1912-01-13
• [E1315CF1], Letter from Deutsche Edison Akkumulatoren Co GmbH, Paul Berthold, Sigmund Bergmann to Thomas Alva Edison, October 18th, 1913
  1913-10-18
• [LB088371], Letter from Paul Berthold, Deutsche Edison Akkumulatoren Co GmbH to John Ferreol Monnot, January 13th, 1912
  1912-01-13