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Unusual form of lever escapement
1840
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Modified verge escapement
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Scale model of Su Song's Water-Balance Escapement
1965
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Model of Lever Escapement, Unsigned, 1860-1928
1860-1928
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Machine man-made movement with lever escapement
1870
Model of a Lever Escapement , 1850-1883
1850-1883
Working model of the co-axial escapement
Canister clock base from the English Reifler escapement astronomical clock designed by E. T. Cottingham
1923-1925
Model of Graham's Cylinder Escapement, 1850-1883
1850-1883