07/02/1900 Edison, Thomas Alva to Miller, John Vincent and Chapman, Cloyd Mason
(Ortiz Mine) Ore milling (non-iron ore)
[LB065]  General Letterbook Series: Letterbook, LB-065 (1900-1901)
[LB065021; TAEM 196:578]
Courtesy of Thomas Edison National Historical Park.
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