Fast Facts About Stamps:

The 1993 Elvis stamp is the most popular US commemorative stamp ever printed, with an estimated 124.1 million collected. That's more than 124 million!

The same stamp is also the subject of many inquiries from would-be stamp sellers: "I have an Elvis stamp and I want to know how much it's worth...."

Sadly, with more than 124 million of them already in collector's hands, it's not worth much. If you have an unused Elvis stamp, use it on your mail (you'll have to add additional postage) because it will at least be worth its face value then. If you have a used Elvis stamp, it's only worth a penny or two.