It was a gun that changed the course of history, snuffing out answers that accused presidential assassin Lee Harvey Oswald might possibly have given.
Now the gun used to kill Oswald, a .38 Caliber Colt Cobra revolver owned by Dallas nightclub owner Jack Ruby, is going on the auction block.
Oswald was assassinated on live television while in the custody of Dallas police officers, just two days after President Kennedy's death.
The photo to the left shows the exact moment on the fatal shot, the gun clearly visible.
Like the conspiracy theories that surround the deaths of Kennedy and Oswald, the gun's value seems to have taken on a life of its own.
Ruby paid just $62.50 for the gun back in 1960; the current owner paid over $200,000 for it in 1991 and to become the next owner a minimum bid of $1 million has been set.