Ken Griffin Pays Record $13.7 Million for Lincoln’s 13th Amendment Ending Slavery The hedge-fund billionaire also paid a record $43.2 million for a copy of the U.S. Constitution four years ago By ...

The founder and chief executive of Citadel — whose net worth is estimated at $46 billion, according to Forbes — scooped up a rare, handwritten copy of the 13th Amendment for $13.7 million to ...

A copy of the Emancipation Proclamation signed by Lincoln -- the highlight of a fascinating catalog -- sold at a Sotheby’s auction for $12 million.