Corning Ware Blue Cornflower P-9-B 9" Square Casserole Dish Vintage USA

Vintage Corning Ware square casserole dish in the iconic Blue Cornflower pattern, marked P-9-B and measuring approximately 9 inches across. Produced in the USA between 1957 and 1988, this dish features the classic three-flower motif and is made from Pyroceram -- a revolutionary glass-ceramic material developed by Corning that resists thermal shock. Safe for stovetop, oven, broiler, and microwave use. The P-9-B model typically holds 2 to 3 quarts and was originally sold for around $8-$10, depending on the retailer. Gently used with no chips or cracks noted. A timeless piece for collectors, nostalgic cooks, or anyone seeking vintage kitchenware that blends durability with charm. Lid not included. Ships securely with care.