Most circulating coins and bills are only worth their face value, meaning a one-cent coin is typically just ... decides the final actual value of a rare coin or bill. The ‘1982-D Lincoln Penny ...

Some Canadian 1-dollar coins are worth much more if they are rare or prized by collectors. One of the very most collectible ...

Often in coin collecting what makes an item valuable is not that it’s perfect, it’s that something went wrong in the minting process, making the resulting coin rare, and hence highly collectible.