A casualty of the chaos surrounding Brexit is the commemorative 50p coin to mark Brexit which now will not be available until after the UK leaves the EU, The Sunday Telegraph can disclose.

MPs had hoped that the coins would be minted in time for Brexiteers to spend on the day Britain leaves the EU later this month – which is in law intended to be March 29.

However – as speculation mounts that Brexit day might be delayed – the Treasury has now said that the coins will only be "available following our departure".

The coins were intended to include the date and year of Britain's exit to mirror similar coins which were produced to mark other national occasions.

The Sunday Telegraph understands that so far only a few undated prototypes of the new coin have been produced.

One source said: "They have minted prototypes – but have not mass produced them yet. They have not dated them yet, [given there is] no exact date of departure, or year."