Brits are being warned not to spend a certain 50p coin which could end up being worth nearly 1,000 times its value.
While cash is somewhat of a vintage construct nowadays, what with contactless payments and Apple Pay, it's clear that lining your pockets with some tangible money could actually pay off - quite literally.
The British public is now being advised to keep an eye out for a particular piece of wallet shrapnel and should maybe think twice before handing over one of the silver heptagon coins which could be worth up to a whopping £410.
The frenzy first started when a 50p coin from over a decade ago sold for the large sum in an online bidding battle.
The coin in question ended up being sold for a staggering £410 - that's 820 times its original value.
Since then, Brits all over are keeping their peepers peeled for any other coins of the sort which could end up also being worth a whole more than their initial value.
This particular piece of change to look out for is a 2009 Kew Gardens coin which is estimated to be worth around £140 mark.
But, as time moves on, the Kew Gardens pieces become more and more rare as collector's items with the price seemingly reflecting the hype.
Released at the tail end of the eventful noughties era, the same time period which brought us a Britpop renaissance and the launch of Big Brother, the coin was said to commemorate the 250th anniversary of the scenic Royal Botanic Gardens when it was first opened to the public in 1759.
The Kew Gardens 50p is considered to be one of the rarest coins currently in circulation, according to the Royal Mint.
Dubbed by the Royal Mint 'the rare 50p collectors go crazy for', just 210,000 coins were ever minted with this particular design,
which features the famous Chinese Pagoda at the Royal Botanic Garden.
The official website explains: "The venerable institution depicted on the Kew Gardens 50p coin is the nation’s most famous royal botanical garden.
"The reverse design, created by Christopher Le Brun RA, features the famous Chinese Pagoda at Kew with a decorative leafy climber twining in and around the tower.
"Demand for the 50p denomination was not high at the time of release into circulation which explains the low mintage of this particular design."
According to an online listing, the 'Kew Gardens 50p genuine 2009 from the royal mint SEALED very rare' had a starting price of £150.
However, after a '12-way bidding war' the initial price more than doubled to £410, plus the delivery fees set at just over a fiver.
So, if you happen to spot the Chinese Pagoda after a pocket-upchuck then be sure to check the date on it.
If it's from 2009, and not 2019 which saw a batch of reissued coins to celebrate 50 years of the 50p itself, then you could be a whole lot more than just quids in.
However, even if it is from just a few years back, coin collectors can still fork out up to £80 or so online for the reissued coin.
Talk about a pretty penny.