Women working on aircraft assembly

1920 × 1507

Car assembly in early factory

1366 × 768

Women working in a factory

3124 × 3684

Women working on aircraft assembly

1300 × 1034

Women working in a factory

1400 × 1044

Group of workers in a factory

1400 × 991

Industrial rail yard with smokestacks

3000 × 2329

Workers in an industrial factory

1600 × 1214

Factory workers in textile mill

1400 × 996

Niagara Falls Mill District 1899

1024 × 768

Child labor at a mine site

1200 × 869

Minnesota Point from Incline Railway

4000 × 3135