The dress sword carried by Napoleon Bonaparte when he staged a coup in 1799 and five of his firearms sold at auction for nearly $2.9 million, US auctioneers announced on Tuesday.
The lot, which was put up for sale by the Illinois-based Rock Island Auction Company, was sold on December 3 via phone to a buyer who has remained anonymous, company president Kevin Hogan told AFP.
The weapon was made by Nicolas-Noel Boutet, who was director of the state arms factory in Versailles.
After being crowned emperor, Napoleon is believed to have presented the sword to general Jean-Andoche Junot, but the general's wife later was forced to sell it to pay off debts.
It was then recovered by a London museum. A US collector was its last owner, but the man recently died, according to the auction house.
In May, France celebrated the bicentennial of Napoleon's death.
The famed Corsican is one of the most divisive figures in French history, his huge contribution to the creation of the modern state set against his imperialism and war-mongering.