Workers in Factory — Black, Industrial

2300 × 1858

Large Cargo Ship — Black

1440 × 1028

Black Car on Assembly Line

4048 × 3245

Steel Arch Bridge — Black

3300 × 2563

Shipyard workers at stern

1920 × 2322

Industrial Factory Interior — Blue, Photograph

3888 × 2592

Large Building under Construction — Black

2400 × 1836

Airship in Hangar — Black

1472 × 1104

Construction of a Skyscraper — Black

1482 × 2012

Lehigh Valley Steam Locomotive — Black

1974 × 1560

Titanic Ocean Liner — Black, Calm

5000 × 3677

Miners in a Tunnel

1217 × 1110