PEARLWARE (also known as Pearl White) developed by Josiah Wedgwood 1779; dominant ceramic in 1810 but was in decline by 1820 white refined, kaolin clay body; clear lead glaze has a blue tint from the addition of cobalt blue bluish concentration of the glaze in vessel crevices (footrings, handles, molded decoration) - undecorated pearlware (rare), 1780-1830 - edge-decorating techniques (blue, green, red), 1780-1830; also occurs on creamware - annular (slip-banded) pearlware, 1790-1820; annular decoration also occurs on creamware and pearlware; narrow bands and earth colors are generally earlier; wide, bright-colored bands with narrow black or white bands are on later products

- underglaze blue hand-painted pearlware (generally floral motifs), 1720-1820 - underglaze polychrome (bright blue, orange, green, pinkish red) hand-painted floral patterns, 1820-1840 - blue transfer-printed patterns (includes blue 'willow'), 1795-1840; process involves applying an engraved decoration to a ceramic surface; developed ca. 1760 and perfected by Josiah Spode in 1781