Seven rare coins worth up to thousands that could be in your pocket

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More and more of us are using cards and phones almost exclusively to pay for goods face-to-face these days. But there's something to be said for handing over a bank note and receiving a handful of change. Not only can you keep a closer eye on your spending, but you might be handed a rare coin worth many times its face value. What makes some of these coins more valuable can depend on many things - from unique designs commemorating historic events, to minting errors and rarity. Sometimes coins with errors could be worth a small fortune because, once spotted,...