A distinctive type of decoration called Rockingham was produced by adding manganese brown glaze to the basic yellowware, resulting in a tortoiseshell effect. This glaze was dipped or spattered onto a revolving piece of yellowware, which caused it to streak and run, creating a molten effect (Leibowitz 2002:9-10, 14).Ā
This Rockingham vessel, historically referred to as a ābaker,ā was found during the 2006 excavation of an early 1840s to 1860s privy in Prairie du Chien, Wisconsin. Ā It would have been used to bake food and could also have been used as a serving dish. This oblong baker is about 12 inches across at the rim and 8 inches at the base. Bakers of this type generally date from 1860 to 1900 (Leibowitz 2002:85).Ā
Leibowitz, Joan
2002 Yellow Ware, The Transitional Ceramic. Schiffer Publishing, Atglen, Pennsylvania.