That may be a question for law enforcement. The sword is currently in the possession of the Hamilton County Sheriff’s Office in Ohio, which is investigating its disappearance, its spokesman, David Daugherty, said.
The sword was about to be sold at a benefit for the Mars and Neptune Trust, an organization devoted to military history that Mr. Kochan founded, when the police arrived.
Mr. Kochan said he bought the sword for $7,500 in 2015 at Christie’s from the estate of Eric Martin Wunsch, a prominent collector of American antiques who died in 2013. He said he was shocked to get a call on the morning of the benefit claiming it had been stolen.
“I said, ‘Slow down, who are you?’ and he said, ‘I’m Tom Ratterman and I’m with the Harrison-Symmes Memorial Foundation in Cleves, Ohio,’” Mr. Kochan recounted. “I said: ‘I don’t mean to insult you, but I have never heard of you. Where is Cleves, Ohio?’”
Mr. Kochan said officers from the Windsor Police Department in Connecticut arrived after the auction began on Oct. 19 and pressured him into giving them the sword without a warrant or a court order. The department did not respond to a message seeking comment.
“They did the usual kind of police in-your-face thing,” Mr. Kochan said. “I thought, ‘I am not leaving the first fund-raising benefit for the trust in handcuffs,’ so I said, ‘O.K., we will turn it over.’”
In an interview, he listed the differences between his sword and the stolen one. Court documents describe the stolen sword as having a 36-to-42-inch blade with a center blood groove and six names engraved on its hilt, including President Harrison’s.