Just a quick Hi. My Aunt gave me a 22" Red Kettle last year (looks brand new) and I've been cooking on it for less than a year. By using the age guide, I'd say it's built around 1973, it has the patent number, wood handle on lid and a small tab on the bottom three vents, plastic wheels with white wall, no lettering on the wheel. I also picked up a performer a month ago. I love to cook on them.