Corning Ware 2.5 L casserole, number F-1-B, made with the original Pyroceram material that can go from freezer, to oven, to table and is much sturdier than the modern stoneware Corning Ware. This is from the French White line became available starting in 1978.
The dish is about 3-1/2" high and 9" across. It and its glass cover are in very good condition with no chips or cracks and only light wear. This French White casserole has some of those gray marks that are common with this style. This is a versatile casserole dish that would be a welcome addition to any kitchen!