Polish Pottery Potbelly Lady Mug 11 Oz. From Zaklady Ceramiczne Boleslawiec #911-149 Art Unikat Signature, Capacity: 11 Oz. Dimensions: Capacity: 11 oz. Height: 3.4" 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