This vintage Pyrex casserole dish belonged to one of my aunts. She said she bought it around 1973, used it for about 10 years, then just kept it stored in a kitchen cabinet. The backstamp only states the Imperial measurement of 1-1\2 Pt., no metric measurement, which verifies this dish was produced between 1972-1975. Both the casserole baking dish and the lid are in very good condition with no chips or cracks in the glass. The lid does have a few minor scratches on it. See photos and item specific information for details.