Graniteware describes enameled metal coffee pots, colanders, salt-and-pepper shakers, cake molds, muffin pans, and skillets produced throughout the Midwestern and Eastern United States from the 1870s until the end of World War II. Patented in 1848 by New York inventor Charles Stumer, graniteware was also known as agateware, enameled ware, and speckleware. Among the many manufacturers of graniteware was the St. Louis Stamping Company, which...Continue Reading