A Christmas card signed by King Charles III and Princess Diana is being sold on eBay – and it could be yours for £2,000.

The listing for the ‘rare’ royal find, from 1985, features a photo of the couple with their children, Princes William and Harry – then three and one years old.

The sweet family portrait shows their eldest son lifting his little brother up and grinning for the camera – as they sit on a Shetland Pony together.

It reads: ‘To you both, from Charles and Diana.’ There is a family portrait of the royal couple with the Princes William and Harry as youngsters.

The special artefact is all the more rare given royals have for a long time not been allowed to sign autographs due to risk of forgery.

There are only a handful of exceptions, such as visitors’ books or official documents.

The card was once auctioned by RR Auction in 2022 and is now available to purchase on eBay being sold by its current owner, who is based in the US.

It is currently listed for US $2,949.95, or approximately£2,337.89.

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A Christmas card signed by King Charles III and Princess Diana is being sold on eBay – and it could be yours for £2,000

‘This is a rare and unique item for any collector or fan of King Charles III, Princess Diana, The United Kingdom and The British Royal Family,’ the site says.

‘The 1985 Holiday Card features a signature from Princess Diana and King Charles III and comes with a certificate of authenticity from RR Auction.

‘The Westminster Collection Ltd & also has been authenticated by Professional Sports Authentication.

‘The card showcases a beautiful design and is in excellent condition, perfect for display or as a special addition to any collection.

‘The historical significance of this item cannot be overstated, and it is a must-have for any serious collector.

‘Don’t miss out on this opportunity to own a piece of history.’

It comes as last month, Queen Elizabeth II‘s former housemaid was selling her collection of Christmas cards sent to her from the late monarch to help pay for her care in old age.

June Guerin, now 87,  joined the royal household in the early 1970s after answering an advert in The Lady magazine.

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The listing for the ‘rare’ royal find, from 1985, features a photo of the couple with their children, Princes William and Harry – then three and one years old

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Charles and Diana pictured on Christmas Day in 1981, after a service at St George’s Chapel in Windsor

She served the Queen and Prince Philip for 22 years and became a senior housemaid at Buckingham Palace.

The Queen was said to be fond of June and she travelled with her and the Duke of Edinburgh, serving at Sandringham, Windsor Castle, Balmoral and on the Royal Yacht Britannia.

She used to regale her family with the story of how she once danced the Gay Gordon Scottish country dance with Prince Philip at a party.

June retired in the mid-1990s and used to live in an apartment on the royal estate at Windsor.

Now suffering from dementia and aged 87, June’s family were selling her royal Christmas cards to help pay for her care.

There were 24 cards in total dating from 1987 to 2018, with some years missing.

Also going under the hammer in October were two personal handwritten cards from Sarah Ferguson, the Duchess of York.

Mimi Connel Lay, of Lay’s Auctioneers of Penzance, Cornwall, said: ‘June’s collection of Christmas cards are a testament to her devotion to the Royal family.

‘Even though she retired from service in the mid-1990s, she still received a Christmas card from the Queen and Prince Philip up until the Queen’s death.

‘It is rare for a phenomenal and personal collection such as this to come onto the market. June now has dementia and is in a care home and her family have made the difficult decision to sell these treasured items to help with her care.

‘Some of the Christmas cards are great from an historic perspective, showing Harry right in the centre and bosom of his family, which is rather poignant given the current rift.’

The card for Christmas 1987 carries a photograph of the Queen and Prince Philip and their four grandchildren at the time, Peter, Zara, William and Harry.

June is originally from Guernsey and never had children.

In recent years she has lived in Cornwall, near her great niece, Michaell Dunne, who is selling the collection.

Mrs Dunne, 45, said: ‘She was very loyal to the Queen who I think cared for the people who were around her every day.

‘Auntie June was always very descreet when it came to the royal family and never gossiped.

‘She did say that her duties included preparing the Queen’s bedroom for bedtime or going in to open the curtains in the morning.

‘June’s favourite story was a New Year’s Eve party where the staff were invited to and she danced the Gay Gordons with Prince Philip, that was her claim to fame.

‘June has lived in a care home in Cornwall for the past six years and has advancing vascular dementia these days. She forgets that the Queen and Prince Philip have passed away and gets upset if reminded.

‘We’d love for June’s collection of cards to be treasured by future generations of people who love the royal family the same way that she does.’