The use of pottery and porcelain for clock cases goes back to about the middle of the 18th century. Many examples are simply metal cases with enamelled porcelain plaques set into mounts or perhaps porcelain flowers or figures as ornament. Enamelled porcelain introduces bright, clear color into case design and the porcelain factories of Meissen in Germany and Sevres in France supplied decorative details of this kind as well as vases to complete a garniture de chemin'ee with a clock. The neoclassical period of the late 18th century produced many fine ceramic cases, sometimes using the new jasperware of Josiah Wedgwood from circa 1775. Parian porcelain, developed from biscuit (unglazed) porcelain, was a splendid material for decorative cases, somewhat resembling marble, and the 19th century saw fine ceramic cases from firms such as Minton, Doulton and Charles Meigh of Stoke-on-Trent, as well as many cheap ones from standard mass-produced movements.