A letter written by the late Diana, Princess of Wales on 21 June 1989 and signed by Princes William and Harry is to go up for auction next week. The letter was to retired Sergeant George Plum of the London Metropolitan Police for putting on a motorbike display for then seven-year-old William’s birthday party held on the grounds of Kensington Palace.
The letter is written on paper with the Kensington Palace header. After 28 years, the retired officer believes it’s time to put it up for auction, and according to the Daily Express, it could go for £2,500.
The warm letter reads: “Dear Sgt Plumb, It was so very kind of you and your team to have come here today on William’s birthday – I cannot begin to tell you what pleasure the display gave to all those little people and their mothers!
“I know how particularly busy you all are at the moment, so it meant even more to us that you and the motorbike boys were able to take part in the birthday celebration!
“This comes with our warmest possible thanks. Yours sincerely Diana, William, Harry.”
On the day of the birthday party, there was a strike on the rail, underground and buses. The collection of letters will also include a letter from Diana’s assistant private secretary, Ann Beckwith-Smith.
Glen Chapman, of C&T Auctioneers of Ashford, Kent, who is responsible for selling the letter, said: “At that time, the Metropolitan Police had a motorbike display team, and they turned up at William’s birthday party at Kensington Palace. They put on a 20-minute show where they got information and did crossovers for the princes.
“The Special Escort Group would have been known to the royals because they did escorts for the family. Diana’s letters are very warm, and it is like she has known you forever, almost like she’s the lady next door.
“What is particularly interesting about this letter is that it is signed by a young William and Harry. Sgt Plumb has been retired for about 20 years now, and he has decided now is the right time to sell the letter.”
The auction is to be held on 15 March.