- Ingersol Milling Machine Company history.
- A BARBER-COLMAN COMPANY ADVERTISEMENT.
- A BARBER-COLMAN COMPANY ADVERTISEMENT.
- W. F. & JOHN BARNS MANUFACTURING COMPANY IN ROCKFORD, ILL. Circa 1924.
- W. F. & JOHN BARNS MANUFACTURING COMPANY IN ROCKFORD, ILL. Circa 1900.
- W. F. & JOHN BARNS MANUFACTURING COMPANY IN ROCKFORD, ILL. Circa 1888.
- W. F. & John Barnes Company
- Ingersoll Milling Machine Company.
- Ingersoll Milling Machine Company, Rockford, Ill.
- Rockford machine shop manufacturing history.
- Rockford machine shop manufacturing history.
- Rockford machine shop manufacturing history project.
- Rockford machine shop manufacturing history project.
- Rockford machine shop manufacturing history.
- Rockford machine shop manufacturing history.