Items

• [D7601K], Letter from Williams and Plum to Charles Batchelor, May 12th, 1876
  1876-05-12
• [D7809AA], Letter from Williams and Plum to Thomas Alva Edison, February 13th, 1878
  1878-02-13
• [D7809B], Letter from Williams and Plum to Thomas Alva Edison, February 26th, 1878
  1878-02-26
• [D7811ZAH], Letter from Williams and Plum to Charles Batchelor, July 19th, 1878
  1878-07-19
• [D7811ZAM], Letter from Williams and Plum to Thomas Alva Edison, August 21st, 1878
  1878-08-21
• [D7811ZAP], Letter from Williams and Plum to Thomas Alva Edison, August 31st, 1878
  1878-08-31
• [D7811ZBE], Letter from Williams and Plum to Thomas Alva Edison, October 18th, 1878
  1878-10-18
• [D7826E], Letter from Williams and Plum to Thomas Alva Edison, February 9th, 1878
  1878-02-09
• [D7826ZAQ], Letter from Williams and Plum to Thomas Alva Edison, July 19th, 1878
  1878-07-19
• [D7826ZAR], Letter from Williams and Plum to Thomas Alva Edison, July 27th, 1878
  1878-07-27
• [D7826ZCG], Letter from Williams and Plum to Thomas Alva Edison, October 21st, 1878
  1878-10-21
• [D7826ZCU], Letter from Williams and Plum to Thomas Alva Edison, October 24th, 1878
  1878-10-24
• [D7826ZGM], Letter from Williams and Plum to Thomas Alva Edison, December 10th, 1878
  1878-12-10
• [D7903ZFE], Letter from Williams and Plum to Thomas Alva Edison, July 3rd, 1879
  1879-07-03
• [D7910F], Letter from Williams and Plum to Thomas Alva Edison, February 15th, 1879
  1879-02-15
• [D7912I], Letter from Williams and Plum to William Carman, November 14th, 1879
  1879-11-14
• [D7925ZAX], Letter from Williams and Plum to Thomas Alva Edison, November 17th, 1879
  1879-11-17