Britons are being urged to check their fivers after a rare £5 note discovered in a man's change fetched more than £60,000 on eBay.
The new polymer note - with one of the earliest serial numbers starting AA01, which is desirable to collectors - was sold on the internet auction site on Sunday morning.
Seller Piotr Sobczuk, from Telford, Shropshire, listed the note on eBay after finding it in his change.
He researched serial numbers before realising his note - with the number AA01 444444 - was potentially worth thousands of pounds.
It has now been sold for more than 12,000 times its street value after attracting 136 bids from 21 different bidders.
The seller is expected to post the valuable note first class standard delivery, having listed postage for just 64p.
The auction site will also take over £250 in fees, according to eBay's fee calculator.
At a Bank of England charity auction in October, one new fiver sold for £4,150.
The note, with serial number AA01 000017, was the lowest number offered to the public.
The lowest numbered note, AA01 000001, was given as a gift to the Queen. The eBay seller did not wish to comment.