Thank you to our friend Barbara who passed these two colorful Pyrex lids on to us. They fit the standard #471-473 Bake Serve Store casseroles. We do know that one of them is from a Daisy casserole and the other is from a promotional casserole known as Blue Floral that matched a dish pattern by the same name. Barbara also gave us two standard clear refrigerator lids, one for the 501 dish and the other for the 502. It’s great to receive these because you never know when you’ll find a refrigerator dish base missing its lid!