Ole Mr. Nessie, i picked up another skillet today. a #8 I think, has a full heat ring on the bottom. only markings on it is OH straight down from the handle on the bottom inside the heat ring. I thumped it and it rang like a bell and when I spun it on a glass top display case it wobbled like Savell after a Cowboys game. In the oven currently seasoning it. Probably was fine as was but I still like to do that part myself.