Orrery, 1910-1920.

Diagram of celestial and terrestrial globes and armillary spheres, c 1805.

McCormick's reaper, 1831.

Huxtable reversible plough, c 1877.

Two Ediswan type lamps, c 1890.

Full Moon, stereocard, 1900.

Desaguliers' Cometarium, 1755.

Molecular models of polythene and polyamide, 1985.

NHS gold-plated plastic rest spectacles, 1948-1960.

Petroleum refinery plant, c 1950s.

Hand-held polariscope, 19th century.

Calculating wheels on Babbage's Difference Engine No 1, 19th century.