11/12/1889 Grosvenor, Thomas H to Edison, Thomas Alva
Cables, feeders, and other exterior elements [Marginalia by Edison, Thomas Alva]
[D8953]  Document File Series -- 1889: (D-89-53) Mining -- Mines & Ores
[D8953ABQ; TAEM 127:182]
Courtesy of Thomas Edison National Historical Park.