Looking through ebay and noticed these very suspect pans and strongly believe they are reproductions. What chances are there that one person has 6 "Antique Griswold Toy salesman Sample No. 0 562 Cast Iron Skillet heat ring". Please exercise extreme caution when bidding on cast iron up for auction on ebay. See link below.
https://www.ebay.com/itm/1-Antique-...031103?hash=item5950e149bf:g:6XUAAOSwTYde963x
https://www.ebay.com/itm/1-Antique-...031103?hash=item5950e149bf:g:6XUAAOSwTYde963x