My late friend Richard Lea, former service manager of the Smith&Wesson service department told me the factory had experimented with target grips being shaped at the bottom similar to the "J" frame style as some people didn't like the sharp edges found on all standard factory target grips. I also confirmed this with a friend who worked in the service department. I posted these before, and many thought I was wrong. These have black washers on the back and the screw escutcheons are recessed which means they were made sometime between 1968 and 1974. They are displayed on a 1970 17-3. There is absolutely no evidence these grips have been worked on outside the factory. The finish is perfect, and the grips are a perfect copy of the "J" frame target grip.