Last year, the Royal Mint worked to produce almost 750 million new pound coins.

But it did not stop there, as commemorative 50p coins were also released, including Beatrix Potter and Isaac Newton inspired coins.

But the rarest coin of last year is rather humble, and one you may not have even realised was rare.

The coin is adorned with a simple coat of arms. Often forgotten about next to the celebratory coins of arts and science, the Mint made just 1.8 million Royal Shield of Arms 50ps.

That's less than a tenth of the number of Peter Rabbit ones, Mirror Online reports.

While this coin doesn't look like much, it's actually very rare

This coin even beats the Isaac Newton coin to the number one spot. Despite their rarity, they are only selling for a few pounds online but its value could soar in a few years.

Checkyourchange ranks them first in terms of collectable 50ps released in 2017, adding there is “increased interest" in the design.

Here are 10 other rare coins that could leave you with a fortune:

1. Kew Garden 50p

The Kew Gardens 50p tops CoinChecker's scarcity index list.



How much it's worth: On eBay, we've tracked down coins selling for as much as £300.

The latest rare coins that could make you a small fortune - including £1, £2, 50p, 20p and 5p

2. Football Olympic 50p




How much it's worth: We've seen these coins sell for around £27 online.

3. Triathlon Olympic 50p

In 2012, the Royal Mint released 29 commemorative 50p coins representing the sports of the Olympic and Paralympic Games. The Football 50p is not the only valuable one in this set - in fact there are five that collectors are after.

The Triathlon coin by Sarah Harvey shows a runner, cyclist and swimmer. Royal Mint figures show there are 2,179,000 in circulation.

How much it's worth: The top price we've seen these sell for £50.

Two rare Charles Dickens £2 coins have sold for £3,500 on eBay

4. Wrestling Olympic 50p

Roderick Enriquez, a graphic designer from London, chose to design the wrestling 50p coin because it's such a well respected, historical sport, and of course, played a significant part in the Olympic and Paralympic Games. There are an estimated 1,129,500 in circulation at present.

How much it's worth: This coin has previously sold online for around £16.

5. Judo Olympic 50p

Another most sought after coin is the Judo 50p which also launched to celebrate the London Olympics. There are 1,161,500 in circulation right now.

How much it's worth: On eBay, this coin has been sold for £35.

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6. Tennis 50p

Released in the year before Andy Murray beat Roger Federer to a Gold medal in the 2012 Olympics, this coin depicts one of the nation's best-loved sports - and is part of the stunning Olympics collection.

How much it's worth: On eBay, this coin has been exchanged around the £20 mark.

7. Handball 50p

Handball is played in an indoor court between two teams of seven, the objective being to throw the ball into the opponent's goal using only your hands.

This coin was designed by Natasha Ratcliffe - the artist and sculptor behind the wheelchair rugby coin.

How much it's worth: On eBay, this coin has been sold for around £31.

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8. Goalball 50p

Played competitively in more than 100 countries, Goalball is one of the most popular Paralympic sports.

Jonathan Wren, a freelance animator from Buckinghamshire was the designer of this 50p.

How much it's worth: On eBay, this coin has been exchanging hands for £45.

9. Rowing 50p

Rowing is one of Britain's most successful Olympic sports, and the only one where team GB have won a medal at every Games since 1984.

The Rowing 50p was designed by David Podmore, a graphic designer from East Yorkshire. He has a strong interest in typography and a great admiration for the sport - both of which are reflected in his design.

How much it's worth: On eBay, this coin has been sold for £18.

These are the 50p coins in circulation potentially worth hundreds of pounds to collectors

10. Shooting 50p

Olympic shooting events are split into three categories; Shotgun, Pistol and Rifle. Britain claimed a single gold medal in the 2012 games.

The winning designer of the Shooting 50p was Pravin Dewdhory who drew inspiration for his design from the graphics used in the London 2012 branding.

How much it's worth: On eBay, this coin has been sold for around the £20 mark.