The Corning Ware P-21 Roaster Blue Cornflower Rectangular Baking Dish is a vintage piece of decorative cookware made in the United States. Featuring a beautiful floral pattern in blue, this mid-century modern style dish is oven-safe and has a glossy finish. With its pressed glass production technique and fused glass production style, this original CorningWare piece is a unique addition to any kitchen collection, perfect for baking and serving dishes with a touch of retro charm.