Factory workers at a machine shop

1029 × 1024

Factory floor with workers

2839 × 2240

Factory workers in warehouse

2300 × 1830

Worker operating industrial machinery

4500 × 6291

Hand Cleaning Belts at Blackhall

1456 × 1040

Hand Cleaning Belts at Blackhall

1504 × 1040

Industrial site with smokestack

1024 × 725

Steam locomotives in a repair shop

2000 × 2116

Factory workers at their stations

2300 × 1858

Great Lakes Engineering Works

4000 × 3154

Workers at a port construction site

1000 × 661

Two workers with tools

2094 × 2299