Collector Ken Griffin spends $18.1m on historic US documents signed by Abraham Lincoln

Billionaire hedge fund founder Ken Griffin purchased two rare historic documents signed by President Abraham Lincoln for a total of $18.1 million at a Sotheby's auction in New York on June 26. The lots included a congressional copy of the Thirteenth Amendment (abolishing slavery in 1865) for $13.7 million and a copy of the Emancipation Proclamation (1863) for $4.4 million. Only 15 known versions of the Thirteenth Amendment signed by Lincoln exist, with just four in private hands. Griffin, a top Republican donor and prolific collector, previously bought a first-edition copy of the U.S. Constitution for a record $43.2 million in 2021.