Figure 18 White-bodied, embossed-edge sherds, Lewis Pottery, 1829–1837. To be able to supply white plates, made from native materials, for the dinner tables of the nation was to an American fineware potter the pinnacle of success. And once Staffordshire potters began to export white-bodied ware shortly after the War of 1812, it became an imperative.
These four fragments of plate rims are certainly white bodied—despite the stains absorbed from being in the earth for 170 years—and proof that the Lewis Pottery did achieve that goal, unheralded though the company was. The details of the mold are sharp, and the rim design borrows liberally from the variety of embossed edges popular since the 1780s and still a favorite import in the 1820s and 1830s. They might well have been decorated with underglaze blue had they not been discarded. A two-line invoice for a small amount of calcined cobalt was copied into the Louisville pages of the diary:
Messrs. Lewis & Vodrey September 29th 1833
to 1/2 lb of Blue Calx $3.50
This seems outrageously expensive for such a small amount, but calx was a refined form of cobalt and such a potent coloring agent that it went far. Surprisingly, there was almost no evidence of blue decoration in what was found at the dig.