This is a clear covered casserole made by Pyrex, originally called the Deluxe Cinderella casserole, but more popularly known as the Golden Hearts casserole. It was issued in late 1959 as a promotional item, offered for a limited time. It original came with a double candle warmer. The underside is marked in raised lettering “045 2 1/2 Qt Pyrex ® Made in U.S.A. 27” while the cover is marked “945C 23”. The lid measures 8 3/4” in by 13” across its handles. It is in excellent condition with no chips, cracks or pronounced wear - this is a clean piece and looks to have seen minimal use