Audetat: Pierre Frederic Ingold 1787-1878, (1962) 2008 Berthoud, Ferdinand and Jacob Auch: How to make a verge watch, (17) 2005 (ISBN 0-958) (with E.J.
Other translations, transcripts and books by Richard Watkins: Berner, G.A. Published in 2011 by Richard Watkins, Tasmania, Australia. Of publications since 1800 by Richard Watkins Second Edition Part 1 - Bibliography Mechanical Watches An Annotated Bibliography