Ken Griffin Bought a Lincoln–Signed Copy of 13th Amendment for $13.7M

Ken Griffin just snapped up two more impressive pieces of U.S. history.

The hedge fund billionaire just bought an Abraham Lincoln–signed copy of the Thirteenth Amendment via Sotheby’s for $13.7 million—a figure that smashed the previous auction record more than five times over. And he didn’t stop there: Griffin also grabbed a copy of the Emancipation Proclamation, also signed by the sixteenth president, for a record $4.4 million. The sale of both rare documents…