I'm going to make a semi educated guess here. It has been established that Griswold's consistency was their in-consistency. In this case of an item that was not as mass produced as a skillet, I would venture to say that we could not depend on the dating of this item based entirely on the "ERIE" only marking as being before the Griswold family obtained the foundry. I think, the old patterns, with the "ERIE" only marking could have been used well after the Griswold family bought the foundry, especially with this item. It is large and the pattern would be very time consuming to make. Don't get me wrong, I'm not saying yea or nay. It could be from the 1800's or it could be later. IMHO.