A-3-B Corningware 3 Quart Casserole in the Blue Medallion pattern. This pattern was a Shell Oil promotion. These promotional gifts where given in 1972 through 1974 from the Shell Oil Company. The pattern is called, "Shell Oil Medallion" and is Blue Or Green Medallion On a White back ground. The bottom reads, "Corning Ware/ A-3-B, 3 QT./ Made in the USA/ For Range and Microwave."

• 3 Quart Corning Ware Casserole Dish with Lid

3 Quart Corning Ware Casserole Dish with LidCorning Ware