Britain's Queen Elizabeth II leaves following a vist to Kings Lynn Town Hall in Kings Lynn, Norfolk on February 6, 2012 to start celebrations for her diamond jubliee 60 years to the day since she ascended to the throne. Queen Elizabeth II renewed her vow to serve on February 6 as she made a deliberately low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO/BEN STANSALL

Britain's Queen Elizabeth II smiles during a vist to Kings Lynn Town Hall in Kings Lynn, Norfolk on February 6, 2012 to start celebrations for her diamond jubliee 60 years to the day since she ascended to the throne. Queen Elizabeth II renewed her vow to serve on February 6 as she made a deliberately low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / POOL / CHRIS RADBURN

Britain's Queen Elizabeth II leaves carrying flowers during a vist to Kings Lynn Town Hall in Kings Lynn, Norfolk on February 6, 2012 to start celebrations for her diamond jubliee 60 years to the day since she ascended to the throne. Queen Elizabeth II renewed her vow to serve on February 6 as she made a deliberately low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / BEN STANSALL

Britain's Queen Elizabeth II waves during a vist to Kings Lynn Town Hall in Kings Lynn, Norfolk on February 6, 2012 to start celebrations for her diamond jubliee 60 years to the day since she ascended to the throne. Queen Elizabeth II renewed her vow to serve on February 6 as she made a deliberately low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / POOL / CHRIS RADBURN

Britain's Queen Elizabeth II arrives for a vist to Kings Lynn Town Hall in Kings Lynn, Norfolk on February 6, 2012 to start celebrations for her diamond jubliee 60 years to the day since she ascended to the throne. Queen Elizabeth II renewed her vow to serve on February 6 as she made a deliberately low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / BEN STANSALL

Britain's Queen Elizabeth II (R) smiles as she is greeted by well-wishers during a vist to Kings Lynn Town Hall in Kings Lynn, Norfolk on February 6, 2012 to start celebrations for her diamond jubliee 60 years to the day since she ascended to the throne. Queen Elizabeth II renewed her vow to serve on February 6 as she made a deliberately low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / POOL / CHRIS RADBURN

Britain's Queen Elizabeth II (C) meets local dignatories during a vist to Kings Lynn Town Hall in Kings Lynn, Norfolk on February 6, 2012 to start celebrations for her diamond jubliee 60 years to the day since she ascended to the throne. Queen Elizabeth II renewed her vow to serve on February 6 as she made a deliberately low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / POOL / CHRIS RADBURN

Britain's Queen Elizabeth II arrives for a visit to Dersingham Infant and Nursery School in Dersingham, Norfolk, on February 6, 2012 to start celebrations for her diamond jubliee 60 years to the day since she ascended to the throne. Queen Elizabeth II renewed her vow to serve on February 6 as she made a deliberately low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / BEN STANSALL

Soldiers from the King's Troop Royal Horse Artillery fire a 41 Gun Salute in Hyde Park, central London, on February 6, 2012, to mark the start of Diamond Jubilee celebrations for Britain's Queen Elizabeth II. Queen Elizabeth II renewed her vow to serve on Monday as she made a low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO/CARL COURT

Queen Elizabeth II walks in with local dignatories during a vist to Kings Lynn Town Hall in Kings Lynn, Norfolk on February 6, 2012 to start celebrations for her diamond jubliee 60 years to the day since she ascended to the throne. Queen Elizabeth II renewed her vow to serve on February 6 as she made a deliberately low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / POOL / CHRIS RADBURN

Soldiers from the King's Troop Royal Horse Artillery fire a 41 Gun Salute in Hyde Park, central London, on February 6, 2012, to mark the start of Diamond Jubilee celebrations for Britain's Queen Elizabeth II. Queen Elizabeth II renewed her vow to serve on Monday as she made a low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO/CARL COURT

Britain's Queen Elizabeth II sign's a photograph of herself and Prince Philip, Duke of Edinburgh, during a vist to Kings Lynn Town Hall in Kings Lynn, Norfolk on February 6, 2012 to start celebrations for her diamond jubliee 60 years to the day since she ascended to the throne. Queen Elizabeth II renewed her vow to serve on February 6 as she made a deliberately low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / POOL / CHRIS RADBURN

Britain's Queen Elizabeth II arrives for a vist to Kings Lynn Town Hall in Kings Lynn, Norfolk on February 6, 2012 to start celebrations for her diamond jubliee 60 years to the day since she ascended to the throne. Queen Elizabeth II renewed her vow to serve on February 6 as she made a deliberately low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / POOL / CHRIS RADBURN

Britain's Queen Elizabeth II smiles as she arrives for a vist to Kings Lynn Town Hall in Kings Lynn, Norfolk on February 6, 2012 to start celebrations for her diamond jubliee 60 years to the day since she ascended to the throne. Queen Elizabeth II renewed her vow to serve on February 6 as she made a deliberately low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / POOL / CHRIS RADBURN

Hundreds of people line St John's Wood High Street in north London, on February 6, 2012, as soldiers from the King's Troop Royal Horse Artillery leave their nearby barracks for the last time on their way to Hyde Park where they later fired a 41 gun salute to mark the start of Diamond Jubilee celebrations for Britain's Queen Elizabeth II. The King's Troop Royal Horse Artillery have been based in St John's Wood since 1947 and will occupy their new premises in Woolwich, south London on Tuesday February 7, 2012. AFP PHOTO / CARL COURT

Hundreds of people line St John's Wood High Street in north London, on February 6, 2012, as soldiers from the King's Troop Royal Horse Artillery leave their nearby barracks for the last time on their way to Hyde Park where they later fired a 41 gun salute to mark the start of Diamond Jubilee celebrations for Britain's Queen Elizabeth II. The King's Troop Royal Horse Artillery have been based in St John's Wood since 1947 and will occupy their new premises in Woolwich, south London on Tuesday February 7, 2012. AFP PHOTO / CARL COURT

Soldiers fire blank rounds during a 62 gun salute at the Tower of London in front of Tower Bridge on February 6, 2012, to mark the start of diamond jubilee celebrations for Britain's Queen Elizabeth II. Queen Elizabeth II renewed her vow to serve on Monday as she made a low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / JUSTIN TALLIS

Soldiers of the Honorable Artillery Company fire blank rounds during a 62 gun salute at the Tower of London in front of Tower Bridge on February 6, 2012, to mark the start of diamond jubilee celebrations for Britain's Queen Elizabeth II. Queen Elizabeth II renewed her vow to serve on Monday as she made a low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / JUSTIN TALLIS

Soldiers of the Honorable Artillery Company wheel their artillary guns into position for a 62 gun salute at the Tower of London in front of Tower Bridge on February 6, 2012, to mark the start of diamond jubilee celebrations for Britain's Queen Elizabeth II. Queen Elizabeth II renewed her vow to serve on February 6 as she made a low-key start to five months of diamond jubilee celebrations marking her 60 years on the throne. AFP PHOTO / JUSTIN TALLIS

St John's Wood Barracks - Soldiers from the King's Troop Royal Horse Artillery parade along St John's Wood High Street in north London on February 6, 2012, after departing their nearby barracks, where they have been stationed since 1947, for the last time. The troop will march to Hyde Park to fire a 41 gun salute to mark the start of diamond jubilee celebrations for Britain's Queen Elizabeth II. AFP PHOTO / CARL COURT