Most collectors will tell you that this DO is not a true Griswold piece; since, it was manufactured in Sidney, Ohio, not Erie, PA. GHC doubled branded items like this in the early 1970's as they phased out the Griswold name in favor of the Wagner brand. It is amazing to see an item like this was still on the shelf. There might be a collector out there who would buy it; since, it is NIB and even ground on the cooking surface, but I don’t see it garnering a three-digit price tag.
Did a lid come with it?