One of my high school acquaintances lived along an arterial road. Actually, his back yard faced this road. One time, he went out back and found a little Walther Model 9 laying in the grass. It seemed that someone had thrown it out of a vehicle that was driving along the road. He turned it in to the local PD, and several months later, they gave it back as unclaimed. This was around 1967, I don't think this same dept. gives back guns now.