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Spring-driven pendulum clock by Johannes van Ceulen of The Hague, c. 1695
Moving magnet galvanometer with dial inscribed "Greenwich Mean Time", 1843-1897
Pendulum clock designed by Galileo in 1642 and made by his son in 1649, model.
1642-1649 (original); 1883 (model)
Early Balance Spring Pocket Watch by Thomas Tompion with Regulator Type Dial, 1675-1679
Three train, flatbed turret clock by E. Dent with double three-legged gravity escapement, c. 1939.
Two-thirds scale copy of the Hampton court astronomical clock dials, with epicyclic gearing unit, outer fixed chapter ring and rotating astronomical dial
Byzantine portable universal altitude sundial with geared calendrical device