The Corningware A-9-C Clear Square Glass Replacement Lid is a vintage piece from the 1970s, designed for an 8" casserole dish. Made of pressed glass with a glossy finish, this lid is perfect for both electric and gas ovens. With its mid-century modern style and original production, this CorningWare lid is a stylish addition to any kitchen collection. Made in the United States, this dishwasher-safe lid is a practical and decorative item for any home cook looking to replace or complete their casserole dish.