Figure 2  Mug, Frechen, Germany, 1660–1680. Salt-glazed stoneware. H. 5 1/2". This mug with applied seal was recovered from the North Sea. The globular form and the shape can also be seen in silver and earthenware mugs of the period. Documentary and archaeological evidence suggest that similar forms were made in England as early as 1660. Characteristic of later English brown stoneware, the mug was dipped into an iron wash or slip before firing creating the rich brown mottled or freckled appearance.