This RARE vintage Corning Ware one quart casserole dish (P-1-B) in the classic blue cornflower pattern, was manufactured in the United States in the 1960’s. Made of shatterproof pyroceram glass ceramic, it can go from freezer to oven, stovetop or microwave to table as an elegant serving dish. Square in shape, this casserole dish has a length and width of 7 inches and depth of 2 2/8 inches, with a weight of 2 lbs, 9.2 ounces. Printed back stamp is on bottom of dish. This piece is in excellent condition with no chips and no cracks and is offered in its original condition unaltered. Consider adding this iconic cookware to your mid-century modern collection. Thank you for looking.