The monograph is from now on available only via Ancre web-page:
A Harbor Dredge: 1750 - Ancre
The work consists in a 72-page booklet which contains the description and the operation of the machine as well as commentaries on the ten plates of drawings and on the 55 photos of a model. The plates are at the 1/36 scale and show every piece of the framework. NEW: 10 PLANS au 1/24e available.
ancre.fr