The first U.K. banknotes featuring the portrait of King Charles III are going into circulation and will coexist alongside those featuring his late mother, Queen Elizabeth II.

Bank notes featuring King Charles III’s face went into circulation on Wednesday, his portrait featured on new £5, £10, £20 and £50 bills — the last one little used and worth a hefty $64. The Charles bank notes are entering circulation slowly,

People have been queuing Wednesday outside the Bank of England’s headquarters in London and at post offices around the U.K. to get their hands on the first U.K. banknotes featuring the portrait of King Charles III.

The new £5, £10, £20, and £50 banknotes will gradually replace existing pound sterling notes with Queen Elizabeth II’s portrait on them

The King is the second monarch to appear on Bank of England notes which will be fed gradually into the system.

As new banknotes with King Charles III on enter circulation, Echo reporter Alfie Lumb visited Poundbury Post Office, one of the first to stock the new notes

The Bank of England is replacing old banknotes featuring Queen Elizabeth with new ones featuring King Charles III. People can exchange their old notes for new ones until June 30, with a limit of £300.