Oil-lamp clock

Oil-lamp clocks are clocks consisting of a graduated glass reservoir to hold oil - usually whale oil, which burned cleanly and evenly - supplying the fuel for a built-in lamp. As the level in the reservoir dropped, it provided a rough measure of the passage of time. It is unknown when, where or in which way the oil-lamp clocks were first introduced. this clock was but mainly used in the 18th century.

Oil-lamp clock

Oil-lamp clocks are clocks consisting of a graduated glass reservoir to hold oil - usually whale oil, which burned cleanly and evenly - supplying the fuel for a built-in lamp. As the level in the reservoir dropped, it provided a rough measure of the passage of time. It is unknown when, where or in which way the oil-lamp clocks were first introduced. this clock was but mainly used in the 18th century.