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The Spirit of Time
The Clepsydra or Water Clock
Types of the Earliest Time Tellers
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accurate Ahaz American watch ancient astronomical balance spring barrel became began bell brass Britten calendar called century CHAPTER Chicago chronometer civilization clepsydra Clock Company clock-making clocks and watches Connecticut Dennison device dial dollar early Eli Terry England English escape wheel factory facture famous France French fusee Geneva gnomon guild Hamilton Watch Company horological hour-glass Howard human hundred Huyghens idea Illinois improvements impulse industry Ingersoll invented inventor isochronism jewels keep later learned lever escapement London machine machinery mainspring makers means mechanism ment minutes modern motion move movement Museum organized ornament pallet pendulum Peter Henlein pinion plate producing shadow stars story sun-dial swing Swiss Switzerland teeth tell thing thousand ticking timekeeping timepiece tion to-day Tompion tooth trade train turn verge escapement Waltham Watch Waltham Watch Company Watch Company watchmakers Waterbury Clock Company Waterbury watch workmen York City