[D9211AJD], Letter from Alfred Ord Tate to George Frederick Ballou, November 28th, 1892
https://edisondigital.rutgers.edu/document/D9211AJD
Transcription
MORANDUM FOR MR. GEORGE F. BALLOU Please do not forget that you are to make a slight alteration in the slot device that is used on the Graphophone. If the regulators on the graphophones at the Works are more desirable for use on our T Phonographs, you can take such a number of them as you require. Would it be feasible for us to make a tank for water motors to sell with the machine? A. O. TATE, Secretary. M.