Items

• [D7819ZDD], Letter from Wallace and Sons to Thomas Alva Edison, December 8th, 1878
  1878-12-08
• [D7826ZBR], Letter from Wallace and Sons to Thomas Alva Edison, October 14th, 1878
  1878-10-14
• [D7903ZJC], Letter from Wallace and Sons to Thomas Alva Edison, October 16th, 1879
  1879-10-16
• [D8049D4], Letter from Wallace and Sons to Thomas Alva Edison, January 19th, 1880
  1880-01-19
• [D8049Y], Letter from Wallace and Sons to Thomas Alva Edison, January 28th, 1880
  1880-01-28
• [D8230ZAJ], Letter from Wallace and Sons to Thomas Alva Edison, May 5th, 1882
  1882-05-05
• [N146131], Technical Note, Wallace and Sons, October 7th, 1878
  1878-10-07