The two pieces to the right (which I found on ebay), are most likely from the period from 1925 – 1959. Amazing that it never had any food on it until I bought it.
I simply washed it with some soap and hot water, soaked it in 50% vinegar & 50% water for 20 minutes.
In the late 19th century through early 20th century, there were many manufacturers of high quality cast iron cookware.
All these things provide clues to the age of your cookware. "The Book of Griswold and Wagner" is favored by many collectors.Griswold, Wagner and many, many other brands and manufacturers exist for collectors to hunt and debate over which was best.RELATED: Mary and Vincent Price's incredible recipe book Antique cast iron was thinner than todays form factor.In many cases, we cannot determine the exact date that a piece of cookware was made. We can come pretty close to a range of dates once we understand a little bit about the manufacturing of the cookware.The iron foundries would have moulds for the various pieces of cookware and over time the moulds would need to be replaced.Compare the pictures in the guidebook with your cookware.