George Washington's US constitution sold for $10m

George Washington's personal copy of the US constitution has sold fo almost $10m, Christie's auction house says

The book, with the first president's own annotations, was printed in 1789 - his first year in office.It had an estimated price of $2m (£1.3m) to $3m but bidding boosted the price of the 223-year-old book.Historians say Washington's notes are what make the book so valuable, as the president was keenly aware of the precedents he would set in office.The leather-bound book is described as in nearly pristine condition and is stamped with the Washington family crest.It also contains the first acts of Congress, which included legislation to establish state, judiciary, defence and treasury departments of government.