Lancashire 18-size hollow-back half-plate frame with barrel but no other train or escapement parts, the frame bearing the stamp ‘J.W’ and the number 2700, possibly that of its finisher, although it could well be Wycherly’s as most of his rough movements are numbered. 46.5 mm diameter.
John Wycherly (1817-91), one of the most important Liverpool makers of rough movements and supplier to most of the best English finishers of his day. He designed his own tooling and standardised English movement sizes, and is holder of Patent No 880, March 1867, for manufacturing “parts of a watch framework to gauge, so that they may be interchangeable” – American historians, please note.
In good, clean, unpolished condition, the plates clearly showing their original hand stoning, a decoration intended to attract the attention of its finishers and, once gilded, never to be seen by the watches owner.