Jasperware Jasperware Jasperware, or jasper ware, is a type of pottery first developed by Josiah Wedgwood in the 1770s. Usually described as stoneware, it has an unglazed matt "biscuit" finish and is produced in a number of different colours, of which the most common and best known is a pale blue that has become known as Wedgwood Blue. Relief decorations in contrasting colours (typically in white but also in other colours) are characteristic of jasperware, giving a cameo effect. The reliefs are produced in moulds and applied to the ware as sprigs. After several years of experiments, Wedgwood began to sell
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,