Here is a vintage Pyrex de Corning covered casserole with matching lid, made of original borosilicate formula glass. When covered, this unique design forms a vented cooking vessel. One handle is marked Pyrex de Corning, another is marked 453 France F. The dish is 8 1/2" wide across the handles and 4 1/8" tall with the lid on. The casserole was produced in the 1950s, it is a midcentury piece of kitchenware. It is in excellent condition with no chips or cracks.