[LB059245A], Letter from Thomas Alva Edison to William Joseph Hammer, December 15th, 1896
https://edisondigital.rutgers.edu/document/LB059245A
Transcription
Dec 15 96 Wm J. Hammer Esq- New York Dear Sir:- In reply to your favor of the 12th inst, I beg to state that I have ordered Mr Aylesworth to send one ounce Calcium of Tungstate to the Professor. Yours truly Thos. A. Edison R[andolph]