Vintage Corning ware casserole dishes with metal candle warming tray. 

Both dishes are the wheat pattern, One 2-1/2 quart with lid, and one 1 quart without lid. Both dishes have slight burn stains and marks from scrubbing, maybe with a abrasive scrubber. I read somewhere that you could clean marks from corning ware with glass stove top cleaner.

 I don't know, but you could give it a try.