Corning Blue Cornflower P-1 1/2-B 1 1/2 Quart Baking Dish. 

It does not have the Range Oven Microwave words on the bottom. 

NO Lid 

Box E

[!mpn:P-1 1/2-B!][!brand:CORNING WARE!][!color:WHITE with BLUE CORNFLOWER!][!identifier_exists:false!]