DALLAS (November 4, 2009)--The $16.50 gray fedora that Dallas strip club owner Jack Ruby was wearing when he shot presidential assassin Lee Harvey Oswald to death in 1963 is going on the auction block.

Heritage Auctions scheduled an auction Saturday for the Cavanagh fedora.

President John F. Kennedy was slain on Nov. 22, 1963.

Oswald was arrested for the assassination, but then Ruby shot and killed Oswald on Nov. 24, in an attack captured during a live TV broadcast as the suspected assassin was being escorted by law enforcement officers.

Ruby was convicted of killing Oswald and sentencing to death.

He was appealing the conviction when he died of cancer in 1967.

The auction house estimates the fedora, with Ruby's name embossed inside in gold and the cost of the hat, will sell for more than $35,000, or roughly $34,984 more than Ruby paid for it.