Vintage 1960 Corning Ware Cornflower Blue Original First Blue Stamp 1 Qt Casserole Dish with Pyrex Glass Lid. Stamp is Pre range or microwave, Pre Made in USA and before model numbers were put on stamps. Called the Blurry Blue Ink Stamp. 1 Quart casserole dish. In very good condition with some usage marks by one handle lug (see pic) and inside dish. Pyrex A7C glass lid. Lid has discoloration with 2 rough small edges under rim. Please review all pics and enlarge for further details.