Ring is from 1941, produced by Ostby & Barton of Rhode Island, offered as a premium for Superman Defense Club milk program costing two bottle caps and 10¢. In Hake's Pop Culture Memorabilia 2008 Price Guide only ten examples were known with four in Good, five in Fine, and one in Very Fine. Since 2008 we offered two NM examples and this example is also NM. The minimal luster loss is microscopic in nature. All areas have brilliant luster. Ring sides have a star and a planet design. Ring top has brass snap off cover with the letter "S" at upper left and a diagonal lightning bolt plus well-struck image of Superman from the waist up breaking a chain across his chest depicted at lower right. The bands on the ring are perfectly formed. We estimate well over 95% luster remains and the ring displays Mint. Our last two examples sold that were NM were in the $7,000-$8,000 range.