- RCA Radiola Radios -1928A 1493 visits
- Estey Organs -1901A 1432 visits
- Adler-Royal Speakers -1925A 2614 visits
- Atwater Kent Loud Speakers -1925A 1730 visits
- Collier's 1930-09-20 3493 visits
- Victor Talking Machines -1922B 1733 visits
- Scott Receivers -1932A 1424 visits
- Columbia Grafonola -1920D 1443 visits
- Victor Records -1923A 1596 visits
- Victor Records -1921A 1676 visits
- Columbia Grafonola -1919B 2097 visits
- Murdock Headphones -1922A 1639 visits
- Brunswick Phonographs -1919A 2106 visits
- Victor Records -1920A 1868 visits
- Atwater Kent Radios -1927A 1913 visits
- Victor Talking Machines -1925A 1738 visits
- Victor Talking Machines -1921C 2016 visits
- Scientific American 1924-12 1743 visits