'A Prospect of Eddystone Lighthouse near Plymouth', Devon, c 1698.

Tungsten carbide/cobalt. Light micrograph i

Beacon House on the Bell Rock, c 1807.

The first Eddystone lighthouse, Devon, c 1698.

Prospect or opera glass, 18th century.

Items used during the construction of the Bell Rock Lighthouse, c 1810.

'The Engine for Raising Water by Fire', 1702.

Opera or prospect glas with vellum tube, mid 18th century.

Vessels used during the construction of the Bell Rock Lighthouse, c 1810.

Better Home Lighting competition poster with a main prize of an all-electric house,1926-1927.

The Belling 'Modernette' electric cooker, 1919.

The Belling 'Modernette' electric cooker, 1919.