Night clock

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Night clock
Manufacturer	Joseph Knibb
Production years	c.1680
Production location	(unknown)

Night clock made by Joseph Knibb, c.1680.

[edit] How it works

Clocks of this type contain an oil lamp which illuminates the dial so that the time can be read at night. However they proved to be a fire hazard and were phased out when the repeating mechanism was introduced. The repeating mechanism enabled the previous hour, and sometimes also the quarter hours, to be struck by a pulling cord attached to the clock, as in the adjacent example by George Graham.

[edit] Memories

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[edit] In the Science Museum's Records

Inv. No: 1981-1856