![](https://coimages.sciencemuseumgroup.org.uk/380/679/large_thumbnail_smg00085897.jpg)
![](https://coimages.sciencemuseumgroup.org.uk/380/679/large_thumbnail_smg00085897.jpg)
![](https://coimages.sciencemuseumgroup.org.uk/380/680/large_thumbnail_smg00085898.jpg)
Small movement and horizontal escapement
![](https://coimages.sciencemuseumgroup.org.uk/380/682/large_thumbnail_smg00085900.jpg)
Unusual form of lever escapement
1840
![](https://coimages.sciencemuseumgroup.org.uk/437/917/large_thumbnail_1965_0008__0010_.jpg)
Scale model of Su Song's Water-Balance Escapement
1965
![](https://coimages.sciencemuseumgroup.org.uk/353/346/large_thumbnail_smg00183451.jpg)
Model of Lever Escapement, Unsigned, 1860-1928
1860-1928
![](https://coimages.sciencemuseumgroup.org.uk/380/678/large_thumbnail_smg00085896.jpg)
Machine man-made movement with lever escapement
1870
Model of a Lever Escapement , 1850-1883
1850-1883
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