George Washington's personal copy of the Acts of the First Congress set an auction record for American historical documents Friday when it was sold for $9.8 million.

Christie's auctioned off the 93-page book containing the Constitution and Bill of Rights.
It was only expected to bring in up to $3 million.

The winning bid went to the Mount Vernon Ladies’ Association of the Union, which maintains the first president's home.

The book has Washington's signature on the title page and his notes near passages on the president's duties.

The book was printed in 1789, during Washington's first year in office.