Items

• [LB001346], Letter from Thomas Alva Edison to John J Crooke, February 1878
  1878-02-00
• [LB001368], Letter from Thomas Alva Edison to John J Crooke, February 27th, 1878
  1878-02-27
• [LB003380], Letter from Thomas Alva Edison to John J Crooke, September 23rd, 1878
  1878-09-23
• [MBLB1256], Letter from Charles Batchelor to John J Crooke, February 14th, 1878
  1878-02-14
• [MBLB1258], Letter from Charles Batchelor, Thomas Alva Edison to John J Crooke, February 19th, 1878
  1878-02-19