Thorpe, Nicolas M.: The French Marble Clock. A Guide for Buyers, Collectors and Restorers with Hints on Dating and a List of Makers
N.A.G. Press, Colchester 1990
ISBN 0-7198-0230-X
A practical handbook on the history, technology and restoration of French marble and slate clocks, particularly from the middle and second half of the 19th century. It deals with the construction and function of clock movements, pendulums, striking mechanisms as well as typical case shapes and types of marble. Numerous illustrations, a separate chapter on the "Pendule de Paris" and an extensive list of manufacturers make this work a valuable reference for clockmakers and restorers.