[LB038469], Letter from Thomas Alva Edison to Josef Casimir Hofmann, March 21st, 1890
https://edisondigital.rutgers.edu/document/LB038469
Transcription
March 21st, 1890 Dear Master Hoffman:- I beg to confirm the receipt of your cablegram received from Berlin on 17th instant as follows:- "Phonograph works wonderful. Sending letter. Hoffman." Very truly yours Thos A. Edison To Master Josef Hoffman, Potadamer, Strasse 64, Berlin Germany