Creamware printers to Josiah Wedgwood by 1763, for example. By 1760 creamware was often enamelled for decoration, using a technique adopted from the early porcelain industry. This consisted of painting overglaze on the ware with pigments made from finely powdered coloured glass and then firing again to fuse the enamel to the ware. The varied enamel colours did not fuse at the same temperature so several firings were generally needed, adding to the expense. There were approximately 130 potteries in North Staffordshire during the 1750s, rising to around 150 by 1763 and employing up to 7,000 people – a large number
American art pottery Arthur Dovey, who worked at Niloak, is often credited with inventing this swirl, but it may have been invented earlier in a different pottery altogether. There is no question that Niloak popularized the style, however, and apart from a three-year hiatus in the late 1910s, Niloak was successful until the Great Depression put sales into a slump. It struggled on for some years and went out of business in 1947. The J. B. Owens Pottery Company was founded in Roseville, Ohio, in 1885 by J. B. Owens. After moving to Zanesville, it produced art pottery from 1896 to around 1910,