Bought on EBay from suziesvintage on Feb 11, 2013 for $24.99 plus $12.43 shipping from Versailles, Ohio. Seller said: “The town [Piqua] where this piece was manufactured is about 20 from where I am. It was probably bought and used locally.” Versailles is west-southwest of Piqua.
I electrocuted it–as Kelley and Mary say–and it cleaned up very nicely. Then seasoned it with flack seed oil for an hour at 400-degrees. Repeated several times.