The Queen and future kings Charles, William and George together on new coin

Four generations of the royal family feature on a historic new coin.

The Queen and three future kings - the Prince of Wales, the Duke of Cambridge and Prince George - are being honoured by the Royal Mint.

They feature on a new £5 coin which shows their initials E, C, W and G, and three crowns.

It is the first time the four have appeared together on coinage and the decision was taken to celebrate what looks set to be a bumper year for the royal family.

The Royal Mint said: "With the 65th anniversary of Her Majesty The Queen's coronation, His Royal Highness The Prince of Wales's 70th birthday, His Royal Highness Prince George of Cambridge's fifth birthday, and a royal wedding to look forward to, 2018 is a busy year of celebrations for the ever-growing royal family.

"To celebrate four generations of royalty making history together, the Queen, her son the Prince of Wales, her grandson His Royal Highness The Duke of Cambridge, and her great-grandson Prince George of Cambridge are honoured together for the first time in a coin collection produced by the Royal Mint."

The Four Generations of Royalty Collection includes editions struck in gold and silver, finished to Proof, and a Brilliant Uncirculated edition.

The official reverse design is by heraldic artist Timothy Noad and represents the heritage of the House of Windsor.

The £5 Brilliant Uncirculated version of the coin costs £13, the UK £5 Silver Proof Coin £82.50, the UK £5 Silver Proof Piedfort Coin £155, and the UK Gold Five-Ounce Coin costs £8,450.