Items

• [E1518GCU], Letter from Hugo Schweitzer to Thomas Alva Edison, July 21st, 1915
  1915-07-21
• [E1518KCD], Letter from Bayer Co, Hugo Schweitzer to William Henry Meadowcroft, November 23rd, 1915
  1915-11-23
• [E1616EAN], Letter from Hugo Schweitzer to William Henry Meadowcroft, May 8th, 1916
  1916-05-08
• [E1615AB], Letter from Hugo Schweitzer to William Henry Meadowcroft, February 8th, 1916
  1916-02-08
• [E1615AC], Letter from Hugo Schweitzer to Thomas Alva Edison, February 16th, 1916
  1916-02-16
• [E1616FCA], Letter from Hugo Schweitzer to William Henry Meadowcroft, June 29th, 1916
  1916-06-29