Boulle, an extremely skilled craftsman, was responsible for furnishing many palaces of Louis XIV. He is associated with a much- copied style of marquetry, at its zenith in 1694. Cut from two thin layers together (generally brass and tortoiseshell) it forms two designs which are the same, but with materials reversed (premier- partie and contre-partie). The clock treated by the Canadian Conservation Institute (CCI) was late 18th century, part veneered, part in the Boulle style. Some brass was engraved, some had colored filling, with added pressed brass decorations. Many pieces were warped or missing. Because of environmental fluctuations, much brass inlay had become larger than its original space. It was cut and filed, roughed and coated on the reverse, dulled, then glued back in. Missing tortoiseshell was replaced with imitation plastic from guitar picks. Both this and the brass were varnished for protection. Tinted Liquitex was used to replace colored fills. Cupped tortoiseshell and inlay were flattened (description in text). Ebonized surfaces were restored, and all original material was cleaned. Later brass additions were omitted.