02/11/1892 Batchelor, Charles to Edison, Thomas Alva
(Taylor & Co; Booth Garrett and Blair [supplied or conjectured]) Production difficulties and adjustments; Rolls and crushers; Ore concentrate
[CJ005]  Company Records Series -- New Jersey and Pennsylvania Concentrating Works -- Administrative and Financial Records: Correspondence (1892)
[CJ005AAE; TAEM 149:456]
Courtesy of Thomas Edison National Historical Park.