Miners at work underground

1300 × 854

Workers on the Brooklyn Bridge

1280 × 1140

Historic mountain town view

2400 × 1881

Blackhall Colliery from North

1456 × 960

Blackhall Colliery 1935

1233 × 870

Miners in a coal mine

976 × 764

Miners in underground tunnel

1217 × 1110

Men with a steam locomotive

2768 × 2176

Workers in an industrial factory

1600 × 1214

Workers on a bridge construction site

3855 × 2547

Workers on steel beam

1478 × 1129

Avant-Guard workers in San Francisco

1865 × 1815

German soldiers with a donkey

1280 × 853

Dock workers loading cargo

2800 × 2248

Group of workers in a factory

1400 × 991

Workers in a concrete tunnel

4256 × 2832

Women working in a candy store

1800 × 1479

Women working on aircraft assembly

1300 × 1034

Women working in a factory

3124 × 3684

Women working on assembly line

2612 × 2336