This is a Corning Ware casserole dish from the popular "Cornflower Blue" series. It's perfect for oven cooking, gratins, and stews, and can be brought directly to the table. It has been stored at home for quite some time. The "Deluxe Mayonnaise" marking suggests it may have been a promotional item. Although unused, there is a chip that appears to have occurred during storage (see photo 8). 【Size】 Outer diameter: Approximately 18cm (excluding handles) Including handles: Approximately 22.5cm Height: Approximately 5.5cm (pot only) - Brand: CORNING WARE - Color: White - Design: Floral - Shape: Square - Country of Manufacture: USA Please understand that this item has been stored at home for a long period of time, so please purchase only if you are comfortable with this. Thank you for looking.