The New Jane Austen £10 note was unveiled last week, to mark the 200 year anniversary of the author's death. The polymer note will go into circulation in September, and is likely to attract the attention of collectors - who will be willing to pay good money to get their hands on particular notes.
See also: Card companies have cunning plan to outlaw cash
See also: Do you have this valuable 50p coin in your change?
When the Winston Churchill £5 polymer notes entered circulation last year, eBay was awash with the new notes - some of which sold for hundreds of pounds to keen collectors. The patterns we saw in the notes that sold for the highest figures give us an insight into the kinds of £10 notes we should keep our eyes peeled for.
Low serial numbers, including notes starting with AA01, were in particularly high demand. In the early days after the notes were released, some changed hands for more than £200 each.
Fairly low serial numbers are also worth keeping your eye out for. While the £5 notes with AA01 were by far the most valuable, as long as they have an AA at the beginning, the note may be worth more than its face value if you get lucky on eBay. Some AA £5 notes higher than 01 sold for as much as £20, as have some notes starting AB and some starting AC.
Sequential serial numbers are worth looking out for too. Note collectors consider these particularly desirable, and a sheet of 60 notes with the range AM01-AM60 followed by the number 428000 sold for £8,500 - so if you happen to come across notes with consecutive numbers, they could fetch several times their face value.