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- WOODWARD HERRINGBONE TYPE GEARS
- Arrow shows the herringbone gears.
- Vintage machine shop manufacturing history project.
- 7
- 4
- WHO'S WHO...
- WHO'S WHO...
- MADE IN THE U.S.A.
- American Machinist manufacturing history project.
- INGERSOLL AD.
- A vintage machine shop manufacturing history project.
- INGERSOLL ADVERTISEMENT. 3
- THE INGERSOL MILLING MACHINE COMPANY.
- ROCKFORD MILLING MACHINE COMPANY.
- A slice of diesel locomotve history in color.