- A vintage Rockford machine shop manufacturing history project.
- A vintage Rockford machine shop manufacturing history project.
- Emerson-Brantingham Company.
- A vintage Rockford machine shop manufacturing history project.
- A vintage Rockford machine shop manufacturing history project.
- A vintage Rockford machine shop manufacturing history project.
- EMERSON-BRANTINGHAM COMPANY
- COTTA TRANSMISION COMPANY.