Polish Pottery Egg Plate From Zaklady Ceramiczne Boleslawiec #1559-56 Pattern, Diameter: 9.5" Dimensions: Diameter: 9.5" Boleslawiec white clay molded and painted by hand Polish Pottery is oven- dishwasher- stove- and microwave oven safe, lead and cadmium free, resistant to chip Manufacturer: Zaklady Ceramiczne "Boleslawiec" Pre-baking at 1562 degrees Fahrenheit, Glazed and fired at 2280 degrees Fahrenheit