Looks like I just became a Cast Iron Collector. We're about to tear down my in-laws 100 yr old abandoned farm house. So I got to digging through a back porch closet and came up with skillets. Is this Griswold Skillet also a Lid for the Fryer (marked with P)? 48 hrs ago I had never heard of Griswold or ERIE.. Unfortunately I tend to go overboard collecting things. lol The skillet-lid has dirt from dirt dobber nest on it.