Anon 
Lever Escapement — A Guide to the Many Variations of this Crucial Element of Clock Work 

This antiquarian work contains a comprehensive guide to the many variations in the lever escapement of clocks, with information on history, manufacture, popularity, and evolution. Complete with detailed diagrams and a wealth of interesting information on the subject, this text will be of much value to the enthusiast and clock-maker, and makes for a great addition to collections of allied literature. The sections of this volume include: Double Roller Escapement, The Crank Lever, Table Roller, Two-Pin Escapement, The Double Roller, Cole’s Resilient Escapement, Cole’s Repellent Escapement, The Club-Tooth Lever… among others. Many older works such as this are increasingly hard-to-come-by and expensive, and it is with this in mind that this work is being republished now, in an affordable modern edition complete with a new introduction on the history of clocks and watches.