[LB056049], Letter from Thomas Alva Edison to Charles Hildreth Lewis, March 12th, 1892
https://edisondigital.rutgers.edu/document/LB056049
Transcription
March 12, 1892. Charles H. Lewis, Esq., No. 31 Milk Street, Boston, Mass. Dear Sir:- I duly received your letter of 7th instant, in regard to the Migham Arc Dynamo. I have great doubts as to the twenty per cent. saving you refer to. Our dynamos give ninety-five per cent efficiency. I am not now actively interested in electric lighting and do not therefore desire to examine into the merits of the dynamo to which you have kindly invited to my attention. Thanking you for your letter I am, yours truly, Thomas A. Edison