This is a beautiful Corning Ware Floral Bouquet Dish referred to as Pyroflam with the White background. As stated it is in very good condition with minor spots noted from use, there is an area above one set of the flowers that appears to be a minor manufacturing paint transfer area.
See all photos and zoom to see the really small areas especially. This is one of Corning Ware's more rare patterns due to fewer being manufactured.
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