The pistol that shot Abraham Lincoln is preserved in Ford's Theater, now a Washington museum. The gun that killed Garfield is sous cloche in the Justice Department. The weapon that took McKinley's life is kept by a historical society in Buffalo, where he was shot. Last week the nation was assured that the 6.5-mm. Italian-made Mannlicher-Carcano rifle with which Lee Harvey Oswald assassinated John F. Kennedy would not end up in a private collection or a public peep show.
John J. King, a Denver oilman and gun fancier, paid Oswald's widow Marina $10,000 for the rifle a year ago, promised...