Postal commemorative gold stamps have a thin layer of gold either surrounding the stamp or overlaid on top of the stamp. They are typically only valuable to those who collect them because the amount of gold is minuscule.
If people wish to collect these stamps, they should visit the U.S. Post Office nearest them to ensure they are picking up the real thing. Flea markets and antique shops also sell them; however, when people decide to go this route, their best bet is to keep in mind that not all of the stamps they see in these types of facilities are real.
Over the years, there have been several scandals and court cases concerning gold stamps. When folks had the opportunity to sell fake stamps at a discounted rate compared to that of the U.S. Postal Service, they did.
Even some of the older stamp collections may have more than a few stamps in them that are not issued by the U.S. Postal Service. However, some of these stamps may be worth a little bit of money, simply because of the scandals that surrounded them.
The bottom line is to purchase postal commemorative gold stamps from the post office itself. This is the only way to ensure that money is being spent appropriately and on something tangible.