The thing that makes CorningWare valuable is the old use of Pyroceram. Pyroceram was also on space shuttle, and missiles! Corning stopped use of Pyroceram in 2000, and switched to stoneware. We have a 1 quart and 1.5 quart casserole dishes with 1 glass lid. Small chip in edge of lid. Some wear noted on bottom of 1 dish. Circa 1966 to 1969. Estate items.
