[LB040366], Letter from Alfred Ord Tate to E P Whitmore, May 7th, 1890
https://edisondigital.rutgers.edu/document/LB040366
Transcription
May 7, 1890 E.P. Whitmore, Esq., Erakine, Passiac Co., N.J. Dear Sir:- Replying to your letter under date 25th April, would say that with the Edison Ore Milling process we get from ninety to ninety-five percent of the iron out of the ore, according to the nature of the iron. Yours truly, A.O. Tate Private Secretary