- A Hydro-Electric Power Plant History Project.
- A vintage farm equipment machine shop manufacturing history project.
- A vintage farm equipment machine shop manufacturing history project.
- A vintage farm equipment machine shop manufacturing history project.
- A vintage Rockford farm equipment machine shop manufacturing history project.
- A vintage Rockford farm equipment machine shop manufacturing history project.
- A vintage Rockford farm equipment machine shop manufacturing history project.
- A vintage Rockford farm equipment machine shop manufacturing history project.
- A vintage Rockford farm equipment machine shop manufacturing history project.
- A vintage Rockford farm equipment machine shop manufacturing history project.
- A vintage Rockford machine shop manufacturing history project.
- A vintage Rockford machine shop manufacturing history project.
- A vintage Rockford machine shop manufacturing history project.
- A vintage Water Wheel Governor Manufacturing History Project.
- A vintage Water Wheel Governor Manufacturing History Project.