Steam locomotive in workshop

1024 × 780

Protesters at the Lincoln Memorial

4048 × 2703

Child laborers at a factory

1680 × 1182

Child labor in early 1900s factories

3060 × 4211

Group of workers in a factory

1400 × 991

Women working in a factory

3124 × 3684

Factory workers in textile mill

1400 × 996

Factory workers at their stations

2200 × 1723

Factory workers at their stations

2300 × 1858

Women working in a factory

1400 × 1044

Industrial rail yard with smokestacks

3000 × 2329

Women working on aircraft assembly

1920 × 1507

Great Lakes Engineering Works

4000 × 3154

Workers in an industrial factory

1600 × 1214

Women working on aircraft assembly

1300 × 1034

Women working at a brick factory

1600 × 1200

Factory workers at a machine shop

1029 × 1024

Factory workers at a machine shop

3000 × 2376

Factory workers in industrial setting

1300 × 984

Assembly line at early car factory

3311 × 2671