FARBERWARE 16qt Stock Pot Stainless Steel Aluminum Clad W/ Lid PAT. 3.173.202 USA. This is a pot I bought when I first got married 45 yr ago and it was used when I got it. Its a great pot. The bottom says U. On it but it doesn’t show in the picture. Vintage cookware made by Farberware has an aluminum base that distributes heat evenly across the bottom of the pan. This minimizes hot spots whether you are searing steaks or simmering sauces.