Items

• [D7510C], Letter from Brooks Patent Insulator Works, David Brooks to Thomas Alva Edison, April 2nd, 1875
  1875-04-02
• [D7510D], Letter from David Brooks, Brooks Patent Insulator Works to Thomas Alva Edison, April 5th, 1875
  1875-04-05
• [D7903ZDC], Letter from David Brooks to Thomas Alva Edison, April 6th, 1879
  1879-04-06
• [SM021011e], Clipping, Telegrapher, David Brooks, 1873-1885
  1873-1885
• [SM053014a], Clipping, Telegraphic Journal, David Brooks, December 1st, 1873
  1873-12-01
• [SM053088a], Clipping, Scientific American, David Brooks, October 30th, 1880
  1880-10-30