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2018-70-179 wm.jpg
Ingersoll Milling Machine Company machine for Bethlehem Steel - Bethlehem, Pennsylvania.

2018-70-102-043 wm.jpg
Ingersoll Milling Machine Company "I" Machine. This machine was manufactured for companies in New York State who were building tunnels under the New York river for the Pennsylvania Railroad. Photograph 29A shows J.L. Davidson, General Foreman of the…
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