A professional who prepares clay for forming into pottery and porcelain ware by either of following methods. Respnsibilities include:

• (1) Pulls chunk of clay from large roll or picks up clay slab cut by machine.
• Centers clay on rotating horizontal wheel and pulls lever to lower tool that flattens clay and forms bat.
• Throws bat onto jigger mold and pulls lever to lower tool that spreads clay firmly over mold.
• (2) Shapes clay into ball by hand and throws clay into jolly mold used in making such hollowware as cups and bowls.