I've owned 4 K-frame .32's in my long life of collecting, two minty pre16's, a 16 no dash (about 90%, a shooter), and a 16-4. The 16-4 was, in my opinion, a much inferior gun, showing timing problems (I bought it new, so it wasn't from previous abuse) and a finish that was uneven and already "plumming." To make matters worse, before long I could push it off sear by applying slight force to the hammer spur with my thumb. It was made, as I recall (I no longer have the gun), in the early 80's, a bad period for Smith. As someone above noted, the 5-screw pre-models are the most common. If you find any of the older K32's/Model 16's, you will pay a pretty penny indeed.