Items

• [D7607J], Instructions, Edison's Electric Pen and Duplicating Press Co, George W Caldwell, 1876
  1876-00-00
• [D7719E], Letter from Charles Pitt Edison, George W Caldwell to Thomas Alva Edison, May 15th, 1877
  1877-05-15
• [D7719F], Agreement, Charles Pitt Edison, George W Caldwell, Thomas Alva Edison, May 16th, 1877
  1877-05-16
• [D7719I], Letter from George W Caldwell to Thomas Alva Edison, June 3rd, 1877
  1877-06-03
• [D7719S], Letter from George W Caldwell to Thomas Alva Edison, July 12th, 1877
  1877-07-12
• [D7812ZAH], Letter from George W Caldwell to Thomas Alva Edison, July 11th, 1878
  1878-07-11
• [D7812ZAR], Letter from George W Caldwell to Charles Batchelor, October 19th, 1878
  1878-10-19
• [HM770032], Agreement, Charles Pitt Edison, George W Caldwell, Thomas Alva Edison, May 16th, 1877
  1877-05-16
• [SB593C], Letter from Edison's Electric Pen and Duplicating Press Co, George W Caldwell to France. Commission to Centennial Exhibitoon, 1876
  1876-00-00