Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930. Stock Photo
RM2AFN2E9–Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930.
Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930. Stock Photo
RM2AFN2DY–Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930.
Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930. Stock Photo
RM2AFN2A3–Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930.
Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930. Stock Photo
RM2AFN29P–Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930.
Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930. Stock Photo
RM2AFN2E0–Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930.
Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930. Stock Photo
RM2AFN2EF–Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930.
Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930. Stock Photo
RM2AFN2DH–Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930.
Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930. Stock Photo
RM2AFN29M–Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930.
Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930. Stock Photo
RM2AFN2E4–Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930.
Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930. Stock Photo
RM2AFN2DW–Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930.
Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930. Stock Photo
RM2AFN2DP–Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930.
Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930. Stock Photo
RM2AFN29N–Workers are shown on the Allis Chalmers factory floor in Milwaukee, Wisconsin, ca. 1930.