Items 42-50, Journal/Magazine , Item 013-046: voice; "Latest in Criminal Detection"; A new invention, the oscillograph, can record voices and be used as an identification tool. Article describes process.; author n.a.; Technical World Magazine, v. XVIII, no. 4, p. 497-498; 2 pages; DF 426, 1912/12

Items 42-50, Journal/Magazine , Item 013-046: voice; "Latest in Criminal Detection"; A new invention, the oscillograph, can record voices and be used as an identification tool. Article describes process.; author n.a.; Technical World Magazine, v. XVIII, no. 4, p. 497-498; 2 pages; DF 426, 1912/12, Box: 13, Folder: 6. International Association for Identification Records, A&M 3518. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/43804 Accessed December 04, 2024.