Pottery and porcelain could be decorated before or after glazing, or the glaze itself might form the decoration — as, for example, with the splashed greens, yellows and browns of English Astbury-Whieldon pottery of the 18th century. Three-dimensional, relief or incised designs were always done before applying the glaze, while coloured designs could be added to the piece before glazing ( in the case of underglaze colours) or after (overglaze colours, or enamels, and gilding). (more…)