Items

• [D8340ZGS], Letter from Markle and Hall to Thomas Alva Edison, November 19th, 1883
  1883-11-19
• [D8340ZHE], Letter from Markle and Hall to Thomas Alva Edison, November 27th, 1883
  1883-11-27
• [D8340ZHJ], Telegram from Markle and Hall to Thomas Alva Edison, November 29th, 1883
  1883-11-29
• [D8340ZHK], Letter from Markle and Hall to Thomas Alva Edison, November 29th, 1883
  1883-11-29
• [D8420ZAJ], Publication, Markle and Hall, 1884
  1884-00-00