Rose Engine, German, c 1750.

Engine house on the bank of the River Tamar, Cornwall, c 1840.

'Engine of HMS King Alfred', 1902.

Profile of the Marly machine, French, late 17th century.

Richards' steam engine indicator, 1862.

Richards' steam engine indicator, 1862.

McNaught Indicator, 19th century.

Boulton and Watt condensing engine, c 1800.

Boulton and Watt condensing engine, c 1800.

Boulton and Watt condensing engine, c 1800.

Boulton and Watt condensing engine, c 1800.

Overturned traction engine, c 1910.