Copies of Adolf Hitler’s manifesto Mein Kampf signed by the German Nazi leader sold for $64,850 (€46,989) at an auction in Los Angeles.
The autographed copies of the two-volume work steeped in anti-Semitism are inscribed as Christmas gifts to Josef Bauer, an officer in the German SS during World War Two and a participant in Hitler's failed Munich coup in 1923.
Eleven people bid during an online auction for the signed books, which were estimated to sell for between $20,000 and $25,000, the auctioneer Nate D Sanders said.
The winning bid includes a buyer’s premium, also known as commission fees.
The same Bauer books fetched $25,000 in a sale at Bonhams auction house in London in 2012.
In the two-volume Mein Kampf (My Struggle), Hitler lays out his vision for a resurgent Germany after World War One along with his racist National Socialist political ideology.
Mein Kampf, unlike Nazi insignia and some Nazi films and songs, is not banned in Germany.
Its German copyright has been owned by Bavaria since the end of World War Two, and the southern German state has prohibited sales and printing.
Reuters