Set of 4 Blue Cornflower Baking Dishes

he product in the image is a vintage CorningWare casserole dish in the "Blue Cornflower" pattern. The Blue Cornflower pattern was a very popular design for CorningWare, first introduced in 1958. The dish is made from a glass-ceramic material called Pyroceram, which was originally developed for rocket nose cones and is highly resistant to temperature extremes. CorningWare dishes with this pattern are safe for use in the oven, microwave, stovetop, refrigerator, and freezer.