- A vintage Rockford machine shop manufacturing history project.
- BARNES DRILL COMPANY.
- MACHINERY JANUARY 1955.
- 7
- MACHINERY MADE IN ROCKFORD, ILLINOIS,
- 6
- MATTISON MACHINE WORKS.
- American BROACH & MACHINE COMPANY.
- The Barber-Colman Company.
- The Barber-Colman Company.
- REHNBERG - JACOBSON MANUFACTURING COMPANY.
- 10
- ROCKFORD... CENTER OF MACHINE-TOOL EXCELLENCE.
- 8
- A vintage machine shop manufacturing history project.