Figure 1 Southern Porcelain Company marks. Top: “S.P. Company/Kaolin/ eagle/S.C.” in a shield. Note the hand inscribed “X” on each sherd. Bottom: (Left) Very light mark “S.P./Company/ eagle/Kaolin/S.C.” in a diamond-shaped cartouche. (Center) “S.P./Company/ Kaolin/S.C.” in a shield. (Right) Four lines of print, but only one is legible: “S.C.” The latter is alkaline-glazed stoneware while the others are biscuit. (Courtesy, Diachronic Research.)