And yet, like any pet, puppies grow up and turn into dogs. Hill Pottery, the forerunner of Fulper, had its start in business in the year 1814. However, pottery marks can also be used for other purposes, such as to indicate the size, shape, or intended use of the piece. A Guide to Belleek China Marks, Patterns & Prices. These experiments use radiation to affect electrons in the minerals found in clay, such as quartz, causing them to move. [CDATA[// >