The Queen accepting a posy of flowers from a well-wisher during a ‘walkabout’ in the City of London after a thanksgiving service for her silver jubilee at St Paul’s Cathedral, June 1977

From left, Lord Mountbatten, the Queen and the Duke of Edinburgh waving from the balcony of Buckingham Palace after the silver jubilee procession

The Queen and Duke of Edinburgh travel to St Paul’s Cathedral in the gold state coach to attend a special service of thanksgiving for the silver jubilee in 1977

The Queen on a dais outside the Sydney Opera House, with the Harbour Bridge in the background, after she disembarked from the Royal Yacht Britannia and was received by a naval guard of honour from HMAS Nirimba during her silver jubilee tour of Australia, March 1977

Elton John and David Frost being presented to the Queen at Windsor after a gala variety performance in the big top at Home Park in aid of the Queen’s silver jubilee appeal, May 1977

The Queen at work on the royal train near Darlington during her golden jubilee tour of the UK in May 2002

Crowds line the street as the Queen rides in the gold state coach from Buckingham Palace to St Paul’s Cathedral for a service of thanksgiving to celebrate her golden jubilee, June 2002

Riding in the gold state coach from Buckingham Palace to St Paul’s Cathedral for a service of thanksgiving to celebrate her golden jubilee

The Queen, the Countess of Wessex, the Prince of Wales and Prince William laughing during the golden jubilee parade along the Mall

Crowds lining the Mall as the Queen, in the gold state coach, leaves Buckingham Palace for St Paul’s Cathedral as part of her golden jubilee celebrations

The scene from the roof of Buckingham Palace as crowds gather to watch a fly-past of 27 aircraft including the Red Arrows and Concorde above the Mall to mark the Queen’s golden jubilee

A street party to commemorate the Queen’s diamond jubilee in Ashby-de-la-Zouch, Leicestershire, June 2012

The Queen meeting (left to right) Sir Elton John, Sir Cliff Richard, Dame Shirley Bassey, Sir Tom Jones and Sir Paul McCartney backstage at the diamond jubilee concert outside Buckingham Palace

Gesturing on the balcony of Buckingham Palace as Prince Charles and Prince William look on during the diamond jubilee celebrations

The Gloriana, the Queen’s row barge, leading the manpowered section of the diamond jubilee river pageant along the River Thames

The Queen is greeted by the Prince of Wales, as she is joined on stage with the rest of the royal family and performers at the end of the diamond jubilee concert at Buckingham Palace

A ceremonial flypast during the diamond jubilee celebrations

The Queen meeting Indigenous Australian dancers during a tea party for the cast of the diamond jubilee pageant at Windsor Castle