This Platter by Steve Howell was glazed with AMACO GDC glaze colors. This very unique series offers unlimited versatility. While developed specifically to produce the Majolica technique, these colors also perform well as a one step decoration for bisque, can be used for overall coverage as well as high fired on stoneware. For more information on Majolica glazes, visit: http://www.amaco.com/shop/product-457-majolica-gloss-gdc-low-fire-cone-05-glazes-for-bisque-lead-free.html