![](https://coimages.sciencemuseumgroup.org.uk/54/191/medium_thumbnail_1934_0651__0002_.jpg)
![Brass eyepiece for the English Reifler escapement astronomical](https://coimages.sciencemuseumgroup.org.uk/392/448/medium_smg00083007.jpg)
Brass eyepiece for the English Reifler escapement astronomical clock designed by E. T. Cottingham, by Thomas Mercer & Co, St. Albans, England, 1923-1925
Brass eyepiece for the English Reifler escapement astronomical clock designed by E. T. Cottingham, by Thomas Mercer & Co, St. Albans, England, 1923-1925