The Smith and Wesson Hand Ejector 2nd Model “Bapty”
The “Bapty” was a Hand Ejector 2nd Model with lanyard ring and a 4-inch barrel with a “Baughman-style” front ramp sight and worn blued finish. The revolver is also clearly in the .455 Eley caliber because exposed brass cannot be seen at the back of the revolver's cylinder during the film.
This pistol was lost at the beginning of Temple of Doom when Willie Drops it during the car chase scene.