Treatment: Inner surfaces of plates and bowls and outer surfaces of jugs,
cups, mugs, chamber pots, and other utensils viewed on the exteriors are
coated with white kaolin slip. Designs are scratched through the slip
while wet and into the surface of the paste, exposing the latter.
Undersides of plates and chargers are often scraped to make irregular flat
areas of surface. Slip-covered portions are coated with amber glaze by
sifting on powdered galena (lead sulphide). Containers which are slipped
externally are glazed externally and internally. Slip and glaze do not
cover lower portions of jugs, but run down unevenly.
[Illustration: FIGURE 20.--Gravel-tempered chafing dish from Jamestown.
Colonial National Historical Park. (_Smithsonian photo 43104._)]
Color: Slipped surfaces are white where exposed without glaze. Unglazed
surfaces are a dull terra cotta. The glaze varies in tone from honey color
to a dark greenish amber. When applied over the slip, the glaze ranges
from lemon to a toneless brown-yellow, or, at best, a sparkling butter
color. When applied directly over the paste and over the incised and
abraided designs, the glaze appears as a rich mahogany brown or dark
amber.