While cleaning out a family members place that had just passed away we found an assortment of firearms. One of them was a S&W .357 with what I belive is a 3 1/2 in barrel. I will attach some picture but for the life of me I couldent find the model number stamp. After doing some comparison I have come to the conclusion that it is a model 27. Since it is missing the model number stamp does this mean it is a pre model 27? If not what model would y'all guess and maybe how much it might be worth.