Few people get rich selling coins. While it’s true that some coins sell for millions of dollars, exceptionally few of these were found in pocket change. The most valuable coins tend to be those purchased as investments and carefully stored to keep them in pristine condition. In fact, many coins are produced with no intention of them being used as currency but as collectibles, sometimes in themed sets.
However, there are always exceptions.
Under special circumstances, circulated coins can be valuable. This generally happens when a minting error is discovered after a coin’s release or when an already low mintage coin is hoarded by collectors. Auction records are almost always held by uncirculated coins, but when it comes to rare coins, lower grade coins are also worth many times more than face value. These coins from around the world, all minted during the last 25 years, are worth checking your change for.