This is a vintage very large stainless steel frying pan that comes with the matching lid. This pan is stamped Revere Ware along with the patent numbers 2363973. The bottom is copper. Both pieces are clean and in very nice condition. The handle also looks nice. The copper bottom could use a little shinning up, but does sit flat. It measures 12" x 2 1/2" deep. Great for large orders of fried chicken.