Astronomical angle measuring device.

Alexandrian chemical workshop, 1st century AD.

"The Anglepoise lamp, c 1930."

Table clock, Japanese.

Table clock, Japanese.

Refracting telescope, 1822.

Instrument to demonstrate the vibration of a glas bell, early 19th century.

Instrument to demonstrate vibration of a glas bell, early 19th century.

John Tyndale lecturing, Royal Institute, 1870.

Equinoctial sun dial, c 1690.

Equinoctial sun dial, c 1690.

Three tuning forks, late 19th century.