Harmograph
- Categories:
- Northern America
- United States of America
1920s
The firm Harmograph Talking Machine Company; St. Louis (MO) and the Harmograph Record Co., were subsidiaries of the Shapleigh Hardware Co.; St. Louis.
1920s
The firm Harmograph Talking Machine Company; St. Louis (MO) and the Harmograph Record Co., were subsidiaries of the Shapleigh Hardware Co.; St. Louis.