This product is a rare vintage Corning Ware Blue Cornflower Casserole Dish with a 2 1/2 quart capacity. The casserole is made of milk glass and features a white base with a blue cornflower pattern. It is an original piece from the 1960s, making it a highly collectible item for those interested in vintage dinnerware. The CorningWare brand is well-known for its quality and durability, making this casserole a valuable addition to any kitchen collection.