Pyrex Square Glass Replacement Lid for Corelle 1 qt or 1.5 qt Square Casseroles Domed and Embossed on the edge: Pyrex and A7C Vintage Clear Glass with No Decorative Ribbing on Square Lid, 6 3/8 in. x 6 3/8 in. Made for 7 Inch Corning Corelle 1 qt ( A-1-B) and 1 1/2 qt (A-1.5-B) Square Casseroles