Hi wysiwyg geetika again I own two of the Beka series copper pans. Yes, bought them from TJmax Denver. Well, the chef Marco Pierre is a world-renowned chef from Uk. Hence, the pans are from England you can goggle and find a lot of info on amazon.com UK. Yep, these pans are 1.5mm copper with stainless steel lining and sell for a lot of money on the U.K. websites. They do discolor a bit on high flame but I polish them back to new with copperbrill bought it from william and sonama. The interior can also be easily cleaned and I use a commercial powder for it. Well, let me know how it goes?