USA CorningWare Casserole, made in the USA. Blue Cornflower pattern. A set of 3: 2 large and 1 medium-deep. Individual pieces are 3500 yen each. Made of heat-resistant glass, with a special coating and manufacturing process, it can be used on direct fire, in the oven, and in the microwave (not compatible with IH). If food is stored in the refrigerator in the pot, it will not break even if heated immediately after being taken out of the refrigerator. It can also be used on high heat. There is slight soiling on the bottom, but it is in good condition considering its age. This is an antique item that has been stored at home for a long time.