Items

• [D7937ZDW], Letter from C Edwards Colby to Thomas Alva Edison, December 8th, 1879
  1879-12-08
• [D7937ZDY], Letter from C Edwards Colby to Thomas Alva Edison, December 10th, 1879
  1879-12-10
• [D8020ZER], Letter from Columbia College. School of Mines, C Edwards Colby to Thomas Alva Edison, May 8th, 1880
  1880-05-08
• [D8043ZAW], Letter from C Edwards Colby to Thomas Alva Edison, December 7th, 1880
  1880-12-07
• [D8146D], Letter from C Edwards Colby to Thomas Alva Edison, February 14th, 1881
  1881-02-14
• [D8146E], Letter from C Edwards Colby to Thomas Alva Edison, February 23rd, 1881
  1881-02-23