Manufacturing errors might be annoying when it comes to most products, but they can be a massive moneymaker when it comes to collectible money. Errors increase the value of collectibles because a ...

Keep in mind that “error” coins — the ones primarily included on this list — don’t have a published ... are a few ways to check if your state quarter is actually valuable.

Before you toss your spare quarters into a vending machine or feed them to a CoinStar, consider this: one specific American quarter could be worth a staggering $7 million. This treasure is the ...

Even so, the ’80s produced a quartet of coins that are rare, coveted and potentially quite valuable. Keep an eye out in your couch cushions and coin jar for any of these four coins from the ...