A famous engraver etched a tiny picture of Jane Austen on some five pound notes. 
 
 Each one is estimated to be worth £50,000, judging by the value of some of his other work. 
 
 Across Britain, people checked their fivers to see whether they had one of the four special notes. 
 
 The third one has now been found by an elderly Northern Irish woman, and she has kindly donated it to charity. 
 
 She sent it back to Graham Short, who engraved the notes, with a note asking him to use it to "help young people". ||||| Media playback is unsupported on your device Media caption Graham Short's portrait of the Queen on a pinhead fetched £100,000 
 
 Another five pound note estimated to be worth £50,000 due to a tiny, engraved portrait of Jane Austen has been found. 
 
 It is the third such discovery across the UK, meaning that just one more note is outstanding. 
 
 The fivers are the handiwork of Birmingham micro-artist Graham Short. 
 
 He spent a note in each of the four home nations and said the latest find was in Northern Ireland - with only England yet to stake a claim to cash featuring 5mm pictures of the author. 
 
 The first was found in a café in south Wales in December 2016, with the second discovery coming in Scotland inside a Christmas card the same month. 
 
 Image copyright Ferguson Media Image caption England is the only home nation in which the rare notes have not been found 
 
 Mr Short said he spent one of the five pound notes in an undisclosed part of Northern Ireland - "in a small bar called Charlie's Bar". 
 
 He said: "An old lady found it and she said 'I don't want my picture in the papers' and she said 'if it sells for a lot of money it will be better if young children could benefit from it'." 
 
 He came up with the idea of engraving Jane Austen on the transparent part of the new plastic Bank of England £5 notes to mark the 200th anniversary of her death. 
 
 He has included a different quote around each one ensuring each note is unique. 
 
 The recipients in Wales and Scotland stated in December they intended to keep the notes rather than sell them. 
 
 The serial numbers of the notes are AM32 88551, AM32 88552, AM32 885553 and AM32 88554. ||||| If you have a £5 note, you may want to take a closer look at it before you spend it. With the right serial number, it could be worth far more than its face value. 
 
 The Royal Mint released the polymer note, which features a portrait of Winston Churchill, on 13 September and a total of 440 million have been printed. 
 
 Within days, it was reported that currency collectors were paying inflated prices to get their hands on notes with low serial numbers in the belief they will be worth far more in the future. 
 
 Here's how to tell how much your fiver might be worth. 
 
 Which serial numbers are valuable? 
 
 The best fivers are those from the first batch, with serial numbers starting "AA01". The rest of the number should be low to guarantee a high price. 
 
 The Bank of England sold more than 100 AA01 notes in a charity auction in October, with a note carrying the serial number AA01 000017, the lowest available to the public, according to auctioneers Spink, going for £4,150, much more than the initial estimated selling price of £800-£1,200. AA01 000018 and AA01 000019 sold for £2,400 and £2,000 respectively. 
 
 A sheet of 60 £5 notes with the range AM01-AM60 followed by the number 428000 sold for £8,500, to help make a total of £194,500 for the Bliss charity for premature and ill babies, the Myotubular Trust and the Lily Foundation for mitochondrial disease. 
 
 A more realistic price for a rare fiver might be around £200, says the Daily Mirror, but this is still 40 times the note's face value. One collector sold a set of three sequentially numbered £5 notes with low serial numbers for £456, adds the paper. 
 
 Notes with a different AA prefix, for instance "AA02", have sold for as much as £20 on eBay. 
 
 The Jane Austen notes 
 
 In a giveaway compared to Willie Wonka's golden tickets, four rare fivers engraved with tiny portraits of Jane Austen went into circulation last year. 
 
 Micro-artist Graham Short, whose portrait of the Queen engraved on a speck of gold once sold for £100,000, designed the 5mm images of the author, who appears on four notes with consecutive serial numbers: AM32 885551; AM32 885552; AM32 885553, and AM32 885554. 
 
 The fivers – which the Daily Mirror says could one day be worth as much as £50,000 – also include quotes from Austen's novels Emma, Pride and Prejudice and Mansfield Park. 
 
 The 70-year-old spent them in Scotland, Northern Ireland, the Midlands and South Wales in November. So far three have been found. 
 
 The fiver in Wales – used to buy a sausage and egg butty at the Square Cafe in Blackwood – was found by an elderly art fan who has given it to her granddaughter as an investment. Staff are said to be kicking themselves for unwittingly giving the valuable find away. 
 
 The Scottish note was found inside a Christmas card sent in the Borders. The lucky recipient, who received the fiver from a relative, has decided to frame the note and hang it on the wall as art. 
 
 The third fiver was discovered in Northern Ireland. Short, 70, told BBC Radio Coventry and Warwickshire: "I went into a small bar called Charlie's Bar and actually that is where I spent it – in there. 
 
 "It has just been found a couple of weeks ago. An elderly lady found it. She said 'I don't want my picture in the papers' but she said if it sells for a lot of money it would be better if young children could benefit from it." 
 
 The artist, who previously managed to write the Lord's Prayer on the head of a pin, "works at night, when traffic vibrations are lower, and uses a stethoscope to monitor his heart and engraves between beats", says the Coventry Telegraph. 
 
 The James Bond notes 
 
 The latest lucky eBay sellers to cash in on the new polymer note are those with serial numbers 007. A note with "AK37 007533" sold for £5,000 on 10 December in Lancashire, and another sold for the same amount in Derby on 26 October with the number "AK37 007012". Both were dubbed "James Bond" notes. However, many other eBay users have tried their luck on the site and had no success. 
 
 What happened to the first note printed? 
 
 Serial number AA01 000001 was given to the Queen fresh off the press, says the Daily Telegraph. It is not known what she intends to do with it, although as she supposedly never carries cash she is unlikely to spend it. Meanwhile, note AA01 001945 has been donated to the Churchill War Rooms. 
 
 Are there any tips for selling a rare £5 note? 
 
 Jenny Keefe from MoneySavingExpert says some £5 notes have sold on eBay for mere pence – one note with a starting price of 99p sold for just £3.20. 
 
 "If you're selling a rare plastic fiver, always start the auction at least at £5 – you'd be surprised how many have closed for less than that sum," she told The Sun. 
 
 "Add in eBay fees and the loss is even bigger. There are so many fivers up for grabs on eBay that I wouldn't set a reserve price, as it might put people off." 
 
 eBay has its own list of general tips for successful selling. To maximise profits, make sure you "create listings that are more informative and attractive to buyers", for example, giving your listing a descriptive and searchable name. 
 
 Meanwhile, journalist and memorabilia collector David Seideman says that persistence is key when it comes to turning a profit in online auctions. "If an item fails to sell once, twice, or even three times, simply relist it," he writes in Forbes. 
 
 Optimising your posting time can also make a difference – Seideman recommends adding new items on weekday evenings, to catch those browsing between returning from work and going to bed, without the distractions of the weekend to pull them away from the computer screen. 
 
 How to spot a fake £5 note 
 
 Although the new bills are purported to be harder to replicate, reproductions may nonetheless slip by in these early days of circulation as many people do not have a genuine £5 note to compare them against. 
 
 Here is a list of ways the Bank of England suggests you try to see if your fiver is genuine: 
 
 Check that the image of Elizabeth Tower is gold on the front of the note and silver on the reverse. 
 
 Check that the foil patch below the see-through window displays the words "Five" and "Pounds" when you tilt the note at different angles. 
 
 Check that the rounded green foil patch on the back of the note not only exists but also contains the word "BLENHEIM". 
 
 Check that if looked at under an ultra-violet light, the number "5" appears on the front of the note coloured in a green and red diamond pattern. 
 
 Check that the crown appears to be three-dimensional. 
 
 Check that there is a see-through window on the note, and that it contains an image of the Queen, encircled by the phrase "£5 Bank of England" twice. 
 
 If you're still worried about whether a note is fake, the Bank of England has a free smartphone app you can download for use on iOS or Android devices to help. 
 
 What about £5 coins? 
 
 The Royal Mint has commissioned a range of Sapphire Jubilee commemorative coins to mark the Queen's 65th year on the throne. The £5 range has the monarch's image in profile on one side and the imperial state crown and its blue sapphire stone on the other, along with an excerpt from a speech she made in 1947: "My whole life, whether it be long or short, shall be devoted to your service." 
 
 They can be found on the Royal Mint's website, with prices of £13 for an uncirculated standard coin up to £8,250 for a five-ounce gold proof coin. 
 
 However, This is Money warns modern commemorative coins are not expected to rise in value over time so make better souvenirs than investments. 
 
 Those who want to make money on their coin collection will need to invest in truly rare coins, including some minted by mistake. 
 
 "The most valuable British coin is the Gold Double Leopard from the reign of Edward III in 1344," says the website. "Only three of these coins are known to exist – two of which are in a museum – and the other sold in 2006 for £460,000." 
 
 What else can you do with a £5 note? (other than spend it!) 
 
 Not every fiver will earn you hundreds of pounds – but the new note's structure lends it a number of other strange uses. 
 
 This includes a makeshift needle for vinyl records. When a corner of the note is held against the grooves of a record, it starts playing the record, reports the Daily Mirror. 
 
 Another revelation was made by Liverpudlian taxi driver Darren Williams, who discovered that a folded £5 note makes a highly effective ice scraper for car windshields on frosty mornings. Williams said he had forgotten his scraper and decided to try the note as a replacement, with surprising success, says Metro. 
 
 There is also a more benevolent use for your first new £5. Using the hashtags #givefive and #firstfiver, one social media campaign is urging people to donate their first plastic fivers to charity. Fundraiser John Thompson is said to have come up with the idea, tweeting: "I'll donate the first new five pound note I get to a charity. Will you?"
– Consumers in the UK are on the hunt for a rare and valuable Willy Wonka-style golden ticket—while the woman who found the third of only four in existence is donating it to charity. It all started when renowned "micro-engraver" Graham Short etched a 5mm-tall image of English author Jane Austen onto four new 5-pound notes, reports the BBC. That's no small thing: Short once sold a portrait of the queen etched onto a tiny piece of gold for about $100,000, notes the Week, and thus his four new etchings are estimated to be worth $60,000 each. Short sent them out into the world by spending one note in each of the kingdom's four home nations: England, Scotland, Wales, and Northern Ireland. The first note was found in a Wales café in December 2016, and not long after the second was found in a Christmas card in Scotland. Now, an elderly woman in Northern Ireland who wishes to remain anonymous just found the third one and sent it back to Short with a handwritten note that reads, "£5 note enclosed, I don't need it at my time of life. Please use it to help young people." Short writes on his website that he will honor her wishes and is working with charities to do so, reports the Telegraph. The fourth and final note, first spent in England, is still at large. (One woman bought a lottery ticket to show her husband it's a waste of money and won, well, a lot of money.)