It's odd to see such a time-bound short in these oh-so-modern days. It must have taken a couple of hours to shoot this. It does have Morris Ankrum as a performer, though he has no lines.
It's a straightforward warning that the guns brought home from the war by discharged GIs were more than merely souvenirs. They were weapons that were completely indifferent to their owners, as the gun's first-person narration points out, and were designed to do only one thing -- puncture the human body.
And so we trace a Mauser pistol from Germany, through an ordinary post-war family (where the gun is used to accidentally kill the family dog), through a varied series of owners, until it winds up in the hands of Morris Ankrum, an armed robber, and is involved in a shooting in which three men die.
Whether it was intended to be so or not, it's virtually an argument in favor of restrictive laws governing the ownership of handguns. The way the pistol's story is presented, of course, says no such thing. It might have been endorsed by the NRA as a plea for responsible gun management. But over the sixty years since this was shot, the cultural context seems to have developed in such a way that the message it carries is now quite different. We don't really need to worry about post-war souvenirs anymore. We need to be concerned about weapons, whatever their origins. The souvenir that was lethal and indifferent then has become the plain old ugly gun that is lethal and indifferent today.