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A pound coin with a rare error has sold on eBay for £205, according to The Sun.
The quid in question was missing the usual silver-coloured middle and instead had a gold colour all over.
The seller explained in the listing description that they 'work in a pub and got this in some change'.
But the punter who handed it over may regret doing so, because after 24 bids from five different bidders, the rare £1 sold on the online auctioning site on 8 August for more than £200.
It seems pretty amazing that people are willing to spend £205 on one dodgy pound, but there ya go, that's coin collectors I suppose. More money than sense.
As you can probably imagine, the Royal Mint churns out tonnes of dosh, so it is inevitable that mistakes occur from time to time - and they can be quite lucrative if you can spot them.
Last February for example, someone made £111 from their 'fried egg' quid, in which the silver-coloured part of the coin sat slightly off-centre, overlapping the golden-coloured ring around the edge.
Kind of like an inverse fried egg really, given the edge's colour is more yolky and the centre more albumeny.
As well as dodgy coins, limited edition ones can of course be valuable too.
Last July, a 50p coin minted to mark the 250th anniversary of Kew Gardens brought in £200 on eBay.
The limited edited coin has been hot stuff for currency collectors since its issue, often topping rare coin indexes.
Money experts at ChangeChecker said just 210,000 of the coins had been minted, compared to a standard minting of around five million.
The site said: "It's estimated that just 1 in 300 people are likely to come across the Kew Gardens.
"When you compare its scarcity to the average 5 million coins per design usually issued into circulation, you start to really understand just how rare this coin is."
Issued in 2009, the coin was designed by Christopher Le Brun, and it shows the gardens' pagoda encircled by a vine, along with the dates 1759 and 2009 and the word 'Kew' at the base of the structure.
Anyway, a more pressing currency matter affecting us all concerns £20 notes.
A new polymer note was issued last February, and we will no longer be able to use the old paper version from 30 September next year - the same goes for paper £50 notes, if you've ever been lucky enough to have one of those babies.
So keep your eyes on your cash folks.