Sea pottery originates from pottery, including earthenware, stoneware and porcelain which breaks into smaller pieces and is smoothed by the acidity and motion of an ocean or lake, the sand or grit polishes the edges like a natural tumbler. Much of the sea pottery in the United Kingdom and United States originated from discarded 18th and 19th century porcelain made in Europe and America[citation needed]. Some sea pottery contains discernible patterns, such as flowers, figures, historic places and scenes, or hallmarks, factory stamps and dates which allow the pottery to be dated using pottery reference guides.
Sea pottery originates from pottery, including earthenware, stoneware and porcelain which breaks into smaller pieces and is smoothed by the acidity and motion of an ocean or lake, the sand or grit polishes the edges like a natural tumbler. Much of the sea pottery in the United Kingdom and United States originated from discarded 18th and 19th century porcelain made in Europe and America[citation needed]. Some sea pottery contains discernible patterns, such as flowers, figures, historic places and scenes, or hallmarks, factory stamps and dates which allow the pottery to be dated using pottery reference guides.