Workers mining ice in a field

1000 × 673

Workers assembling aircraft engine

1600 × 2037

Railroad worker with tools

1519 × 1227

Worker assembling large industrial machine

963 × 1200

Dock workers loading cargo

2800 × 2248

Factory workers at night

2560 × 1600

Women painting aircraft parts

1100 × 1375

Blackhall Colliery 1935

1233 × 870

Two Women at Factory Machine

1300 × 1034

Woman and Man Working on Aircraft

1920 × 1507

Brickyard laborers at work

1600 × 1200

Women working on assembly line

2612 × 2336