Collectors have taken to Ebay as hundreds of rare Kew Garden 50p coins have been put on sale.
The Royal Mint is encouraging people to rummage through their loose change to discover whether they have a rare 50 pence piece.
It is said that only one in 300 people is estimated by the Mint to have the Kew Gardens coin in their possession after it was released into circulation in 2009 to mark the 250th anniversary of the Royal Botanic Gardens.
The coin, which is said to be £20, is selling on the online marketplace for as much as £300 and more.
Here are some of coins on the higher end of the market:
A mint condition Kew Garden 50p coin has sold for £310.
A 'not bad' condition Kew Garden coin is being sold on Ebay for £250.
Described as 'mint condition', this seller has put the coin on Ebay for £150.
In the description, the seller attempts to justify the price of the coin:
A Kew Garden coin without any detailed description is on sale for £130.
The Mint is inviting people to share a photo of their Kew Gardens 50 pence on the Mint's Facebook page or on Twitter at #strikingstories.