This unique collectible set showcases the iconic DC superhero, Superman, on a stamp and magnetic greeting card. The set also includes foil notecards featuring the same design. Made in the United States, this item is an excellent addition to any stamp or superhero enthusiast's collection. It has not been certified, but its authenticity can be confirmed by its official USPS branding. This set falls under the categories of stamps and specialty philately, specifically postal stationery. Please look at pictures for more details. We will package securely and ship promptly.