From the 1940s listed in Hake's Pop Culture Guide as rare and less than ten known. In addition to its rarity, this example is the best we've seen. It grades N. Mint with mere traces of wear under magnification but o/w displays Mint with glossy, probably nickel-plated, silver luster. The solid band is like an arm with a boxing glove on each end that bears the signature "Joe Louis" and flanks the realistic, finely-detailed, high relief portrait of him. Ring is an adult large ring size 13. Rarely offered and most probably the best condition example known. The Hake Pop Culture Guide NM value is $3,750. A conservative opening.