This is an early post-WWII production piece featuring the highly sought-after Double-Ring Circle Logo stamped on the copper bottom. It includes the historical "Patent Under Process Pat. No. 2363973" text, securely dating the pan's manufacture to the 1946–1947 era. The bottom copper plate features vintage factory-stamped shift/batch numbers flanking the circle logo.

Features an authentic vintage copper patina on the bottom base. The stainless steel cooking interior shows only light, normal surface scuffs from decades of kitchen use, completely free of deep pitting or heavy carbon crusting. It can easily be cleaned to a mirror shine or left with its classic vintage look.