Queen Elizabeth II, eyes downcast on her wind-swept skirt, debarks from her plane at London Airport on August 2, 1959, ending her 45-day tour of Canada. British newspapers on August 3 voiced concern for the Monarch's health, saying she looked pale and tired after the long tour. (AP Photo)

Queen Elizabeth II manages to emerge with her white coveralls unsoiled after an underground visit to Rothes coal mine in Scotland on June 30, 1958. Mine workers gather around the pithead to view the Queen who donned a complete outfit, including helmet, lamp and rubber boots, for her subterranean tour. (AP Photo)

Queen Elizabeth II, standing in an open car, manages a sunny smile despite the rainy weather as she drove through the streets during her visit to Lincoln, England on June 27, 1958. (AP Photo)

Queen Elizabeth II, left, rides in an open carriage with Queen Juliana of the Netherlands and Princess Irene, back to camera, en route to the Royal Palace in Amsterdam, after arriving with Prince Philip, March 25, 1958 for a state visit to the Netherlands. (AP Photo)

Queen Elizabeth II holds written speech as she addresses Canada's parliament in Ottawa on Oct. 14, 1957. Address formally opened the 23rd parliament. Seated on throne beside her is Prince Philip. (AP Photo)

View in side senate chamber at Canadian Parliament building in Ottawa on Oct. 14, 1957, showing Queen Elizabeth II and Prince Philip on thrones. (AP Photo)

Queen Elizabeth II and Prince Philip, in colorful robes, arrive in procession at St. George's Chapel, Windsor, England, June 18, 1957 for investiture ceremony. Invested as Knights Companions of the Most Noble Order of the Garter by the Queen in the throne room at Windsor Castle were Lord Ismay, former secretary of the North Atlantic Treaty Organization, and Lord Middleton, for 21 years Lord Lieutenant of the East Riding of Yorkshire. (AP Photo)

Britain's Queen Elizabeth II waves to the crowd whilst travelling to a theatre in London, May 3, 1957. (AP Photo)

Britain's Queen Elizabeth II and the Queen Mother take their Corgi Dogs out for a stroll on Nov. 19, 1956 during a visit to he royal stud at Sandringham, England. The Queen and her mother appear well-bundled against the chill of the foggy autumn. (AP Photo)

Queen Elizabeth II watches a Nigerian girl as she tosses ground corn from one bowl to another during winnowing process at Kabuna, northern Nigeria on Feb. 3, 1956. At right is Nigerian Minister of Education Makaman Bida. (AP Photo)

Queen Elizabeth II is greeted on her arrival, at the royal command variety show at London???s Victoria palace theater on Nov. 7, 1955. Some 300 persons appeared in the show attended by a glittering audience which paid up to $50 for a seat. Proceeds went to a variety artists??? benevolent fund. (AP Photo)

Ethiopia's 'Lion of Judah' Emperor Haile Selassie, and Britain's Queen Elizabeth II acknowledge greetings of spectators as the two monarchs arrive at London's Buckingham palace at the head of a state procession on Oct. 14, 1954. The Queen met the African ruler at Victoria station and they rode side by side to the palace in the gilded royal coach. Emperor Selassie, in Britain for a three-day state visit, last visited London as an exile following Mussolini's conquest of Ethiopia. (AP Photo)

Queen Elizabeth II and the Duke of Edinburgh sit with hands clasped in their laps as they leave the temple bar entrance to the heart of London on May 19, 1954 in an open carriage en route to mansion house to be the luncheon guests of London's Lord Mayor Sir Noel Bowater. The luncheon followed traditional sword-touching ceremony at temple bar in which the Queen's request to enter the city was granted. The affair was part of the welcome home celebration to the recently-returned monarch. (AP Photo)

State Landau carrying Queen Elizabeth II and the Duke of Edinburgh to the old city from Buckingham Palace in London on May 19, 1954, passes through crowded Fleet Street. The couples were guests of the Lord Mayor at a welcome home luncheon at Mansion House. The traditional luncheon is normally held at the Guildhall which is now under repair. (AP Photo)

May 15, 1954 - London, England, UK - The elder daughter of King George VI and Queen Elizabeth, ELIZABETH WINDSOR (named Elizabeth II) became Queen at the age of 25, and has reigned through more than five decades of enormous social change and development. For more than 50 years, during a period of great social change, The Queen has carried out her political duties as Head of State, the ceremonial responsibilities of the Sovereign and an unprecedented programme of visits in the United Kingdom, Commonwealth and overseas. PICTURED: QUEEN ELIZABETH II with PRINCESS ANNE and PRINCE CHARLES after coming back from her world trip. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

Jan 01, 1954 - Epsom, UK - The elder daughter of King George VI and Queen Elizabeth, ELIZABETH WINDSOR (named Elizabeth II) became Queen at the age of 25, and has reigned through more than five decades of enormous social change and development. For more than 50 years, during a period of great social change, The Queen has carried out her political duties as Head of State, the ceremonial responsibilities of the Sovereign and an unprecedented programme of visits in the United Kingdom, Commonwealth and overseas. PICTURED: QUEEN ELIZABETH (Queen Mom) with her daughter PRINCESS ELIZABETH (Queen ELIZABETH II) watching a derby. (Credit Image: ? KEYSTONE Pictures USA)/ eyevine

Queen Elizabeth II, dressed in the magnificent robe of cloth of gold, receives the sceptre with cross, the ensign of kingly power and justice, from the Archbishop of Canterbury, June 20, 1953. (AP Photo/POOL)

Queen Elizabeth II, wearing the Imperial Crown, smiles and waves to crowd from balcony of Buckingham Palace on June 3, 1953 in London, on returning from Westminster Abbey following her coronation. (AP Photo)

Surrounded by his clerics and ladies-in-waiting, Queen Elizabeth II sits in the Chair of Estate in Westminster Abbey, London on June 2, 1953, before being crowned. In royal gallery in background, Queen mother Elizabeth is leaning over to attend to the unseen little Prince Charles. Princess Margaret also lends a hand. Duchess of Gloucester may be seen at right in royal gallery. (AP Photo)

PHOTO: EAST NEWS/AFP Queen Elizabeth II poses with the royal sceptre 02 June 1953 after being crowned solemnly at Westminter Abbey in London. Elizabeth was proclaimed Queen in 1952 at age 25.