Items

• [E1616EAS], Letter from West Orange Laboratory to Hugo Schweitzer, May 10th, 1916
  1916-05-10
• [E1615AH], Letter from Thomas Alva Edison to Hugo Schweitzer, February 28th, 1916
  1916-02-28
• [LB110562], Letter from William Henry Meadowcroft to Hugo Schweitzer, March 3rd, 1916
  1916-03-03
• [LB105603], Letter from Thomas Alva Edison to Hugo Schweitzer, July 23rd, 1915
  1915-07-23
• [LB112224], Letter from Thomas Alva Edison to Hugo Schweitzer, May 16th, 1916
  1916-05-16