A picture of former U.S. presidents John F. Kennedy, Harry Truman and Lyndon Baines Johnson (L-R) is displayed as part of the McInnis Auctioneers Presidential Auction in Amesbury, Massachusetts in this file photo from February 10, 2013. REUTERS/Jessica Rinaldi/Files

Washington - A leather bomber jacket that belonged to slain US president John F. Kennedy has been sold at auction for $665 500, far exceeding the initial estimate, a Massachusetts auction house said Monday.

The brown Air Force One jacket was one of 700 lots put on the auction block Sunday after the family of David Powers, a special assistant to Kennedy, discovered a treasure trove of JFK memorabilia in the Powers family home.

The jacket was initially estimated at $20 000 to $40 000.

Among the other JFK items up for sale, nearly 50 years after his assassination, were photographs, campaign posters, letters and books belonging to the president.

The John McInnis auction house said on its Facebook page that the jacket was sold for $570 000. With the premium, the total was $665 500. The sale lasted more than six hours, the house said. - Sapa-AFP