The Corning Ware A-10-B Blue Cornflower 10"x10"x2" Casserole Dish with Lid A-12-C is a vintage piece of cook/bake ware from 1987, featuring a square shape and a floral pattern in a glossy blue finish. This mid-century modern casserole dish has a 2.5 quart capacity, made of Pyroceram and ceramic materials. It is oven-safe, dishwasher-safe, and microwaveable, with heat resistance for durability. This original production style pressed glass casserole dish weighs 5lbs and is a part of the Blue Cornflower product line by CorningWare.