This covered Pyrex Cinderella casserole bowl is in the Horizon Blue pattern from 1969. It was part of what Corning called a Bake Serve & Store set. It's number 473 one quart dish, measuring 6-1/4 inches diameter not including the pour spout tab handles by 3-1/4" deep.
Both the casserole and the clear glass lid are in excellent, spotlessly clean condition. The finish is glossy and unfaded and there is no damage. There are a few faint, small white marks in the bottom of the bowl from utensil use.