- History not to be in the year 2020.
- INGERSOLL MILLING MACHING COMPANY, CIRCA 1922.
- Barn's Upright Drills
- Woodward Governor Company's Hydraulic Turbine Water Wheel Governor advertisement.
- SUNDSTRAND MACHINE TOOL COMPANY HISTORY.
- SUNDSTRAND MACHINE TOOL COMPANY HISTORY.
- ADVERTISEMENT FROM 1867.
- THE WORCHESTER DIRECTORY, CIRCA 1867.
- ADVERTISEMENT FROM 1867.
- ADVERTISEMENT FROM 1867.
- ADVERTISEMENT FROM 1867.
- ADVERTISEMENT FROM 1867.
- hvd.hn4ht9-seq 292
- ADVERTISEMENT FROM 1867.
- ADVERTISEMENT FROM 1867.