[QP0100000A], Legal Testimony, Charles Luman Buckingham, William Butler Hornblower, William Pelzer, Frank Lewis Dyer, November 14th, 1905
[QP010-F] Litigation Series -- Phonograph Cases
https://edisondigital.rutgers.edu/document/QP0100000A
Thomas A. Edison Papers, School of Arts and Sciences, Rutgers University
Archive.org Viewer, Microfilm Series Reel 117