Factory interior with machinery

1920 × 1453

Civil War officers at camp

1024 × 887

Union officers with cannon at Gettysburg

2000 × 1848

Civil War soldiers in forest

3300 × 2411

Civil War soldiers in forest

1800 × 1425

Civil War officers in forest

1600 × 1297

Civil War hospital courtyard

3000 × 3013

page from economic thought book

1604 × 2235

Historical balloon illustrations

2011 × 1200

Union soldiers resting on a hill

1430 × 1073

Death of Nelson in the cockpit

2000 × 2458

Soldiers at a wooden fortification

2000 × 1859

Civil War soldiers in forest

3000 × 2268

abandoned metalworking workshop

1502 × 1000

Metal fabrication workshop

1024 × 768

19th-century telegraph lines map

1500 × 982

Two men working on a lathe machine

1400 × 1021

Welder working with sparks

1600 × 1000

Worker cutting metal with sparks

4884 × 3744

Historical natural history chart

5156 × 3244