Items

• [E1483DL], Letter from Cass Gilbert to Thomas Alva Edison, December 19th, 1914
  1914-12-19
• [E1483DS1], Report from Stephen Babcock Mambert to Charles Edison, Thomas Alva Edison, December 22nd, 1914
  1914-12-22
• [E1579AZ], Letter from Stephen Babcock Mambert to Egbert Jessup Moore, American Concrete Institute, January 20th, 1915
  1915-01-20
• [E1579BU], Letter from Theodore Lincoln Condron, Condron Co to Thomas Alva Edison, March 15th, 1915
  1915-03-15