- INGERSOLL MILLING MACHINE COMPANY.
- The Emerson Brantingham Implement Company.
- A Rockford machine shop manufacturing history project.
- National Lock Company, circa 1925.
- A Rockford machine shop manufacturing history project.
- W. F. & John Barnes Company.
- A Rockford machine shop manufacturing history project.
- A Rockford machine shop manufacturing history project.
- A Rockford machine shop manufacturing history project.
- A Rockford machine shop manufacturing history project.
- Made In Rockford.
- Made In Rockford.
- INGERSOLL MILLING MACHINE COMPANY.
- A Rockford machine shop manufacturing history project.
- INGERSOLL MILLING MACHINE COMPANY.