Rare coins can fetch a pretty penny if they boast unique designs or minting errors.
Even those with low mintage are often the most sought after. Coin enthusiasts might be particularly interested in the Kew Gardens 50p coin, of which only 210,000 exist in the UK.
Even old coins, such as a 3p or Half Crown, could potentially net you a tidy sum. Now, let's turn our attention to some UK coins that could actually be worth a small fortune.
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TikTok user @CoinCollectingWizard, who has amassed a following of 143,000 for his savvy money advice, recently posted a video highlighting the ones to keep an eye out for.
He detailed three pieces, including one worth £100,000. The @CoinCollectingWizard said: "The 1905 Half Crown from the UK with only 166,008 ever made, you can easily grab between £450 and £10,000 depending on the condition.
"The 1933 One Penny, the rarity makes it highly sought after by collectors and its scarcity contributes significantly to its market value.
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"If you happen to have a 1933 UK penny in your possession, then you are 100% rich as this can easily sell for over £100,000."
He ended the post by describing the 1983 New Pence Two Pence which is considered rare due to a specific transition in the design of the coin.
"In 1983, the Royal Mint began the process of changing the inscription of the two pence coin from new pence to two pence," he revealed. "If you find this rare coin you are looking at £1,000 plus."
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For all the coin collectors out there, it's worth knowing certain designs in your collection are considered special. Since the video was posted on TikTok, it received around 700 likes and a bunch of comments.
One enthusiast stated: "I have these coins," while another commented: "I have so many coins to sell." Other viewers were keen to know how they could sell their extraordinary pieces.