Get rich quick hopefuls were asking £900 for the new Jane Austen £10 note within hours of them being issued.
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Launched to mark 200 years since the Pride and Prejudice author's death, fanatics were on the hunt for numbers relevant to her life, including her date of birth 16 121775.
One collector beamed: "I queued to get the new £5 note as well. I enjoy the thrill of getting a brand new note before anyone else."
One billion have been printed and will be circulated over coming months.
The old paper £10 will be withdrawn next spring. The new note features a hologram with the word "ten" which changes to "pounds", plus a quill which turns orange from purple.
The slick plastic notes are said to be "forgery proof"
But vegans are furious over the decision to keep traces of tallow animal fat in the notes. Staff at The Vegan Hippo cafe in Soho, Central London, insisted: "We won't accept the £10 note, it's against our values."
Next for a revamp is the £20 which will feature artist JMW Turner , due out in 2020.