Billionaire developer Ken Griffin owns several significant pieces of American history, including copies of the U.S.

Palm Beach resident Ken Griffin's most recent purchases include rare copies of the Emancipation Proclamation and 13th Amendment, both of which were signed by Lincoln.

Griffin, founder and CEO of Citadel and Palm Beach's largest property owner, bought rare copies of the 13th Amendment and Emancipation Proclamation — both signed by President Abraham Lincoln ...

Griffin, founder and CEO of Citadel and Palm Beach's largest property owner, bought rare copies of the 13th Amendment and Emancipation Proclamation — both signed by President Abraham Lincoln ...