Had it for a long time. Cast iron that is 16" long by 6" wide and 4" deep. Has a lid that fits perfectly and can be used as a griddle. both the main piece and the lid have handles that are casted as part of the whole item. The only stampings are TAIWAN with the letters O L under the Taiwan. I guess it could be for baking, or stews, or soups. I don't know. Anybody have any idea about this odd piece?