Brought to Spain in the thirteenth century by Islamic artisans, the enamelled earthenware known as mayolica is decorated with a lead glaze to which tin oxide is added to create an opaque white surface. By the fifteenth century, several areas in Spain were well known throughout Europe for the quality of these ceramics, and with Spain's expansion into the New World the mayolica tradition came into Mexico. There it underwent further changes, notably the use of indigenous design motifs and patterns inspired by Chinese porcelain. Over the next three centuries, the potters of New Spain produced...