12/13/1881 Eaton, Sherburne Blake to Edgars, R J
(Edison, Thomas Alva; Meadowcroft, William Henry) Sales and service; Ore milling and separation
[LM005]  Letterbook Series -- Miscellaneous Letterbooks: (LM-005) Ore Milling Co Letterbook (1881-1887)
[LM005080; TAEM 84:255]
Courtesy of Thomas Edison National Historical Park.