Item 020-018: fingerprints; Be a Finger Print Expert; A brochure for home instruction from the "Department of Finger Printing, International Detective System" which includes order forms and a letter from Doepner to the department questioning their program, 04/08/1935.; author n.a.; International Detective System, Jersey City, NJ; 5 leaves; DF 851, 1934

Item 020-018: fingerprints; Be a Finger Print Expert; A brochure for home instruction from the "Department of Finger Printing, International Detective System" which includes order forms and a letter from Doepner to the department questioning their program, 04/08/1935.; author n.a.; International Detective System, Jersey City, NJ; 5 leaves; DF 851, 1934, Box: 20, Folder: 4. International Association for Identification Records, A&M 3518. West Virginia and Regional History Center. https://archives.lib.wvu.edu/repositories/2/archival_objects/44087 Accessed December 06, 2025.