 Wasters i.e.pottery misfires have been found for all three wares in Birmingham.Glazed Deritend ware jugs were decorated with white slip (liquid clay) lines and applied white clay strips, often roller stamped, and white clay pads, The more complex (and later) decorative schemes are in the North French style (c. AD 1275-1325); the decorated jugs closely resemble London-type ware and it is distinctly possible that the Deritend ware industry included migrant potters from the London area in the thirteenth century.