This Model 57, S253104, was shipped exactly three years before the one I posted in another thread that has a 5-inch barrel and nickel finish. It was shipped on January 19, 1965. It has the blued front sight blade/ramp and "coke bottle" stocks.
Yes, if you could find one for sale. But, it would not be inexpensive. Take a look on GunBroker to get an idea on price. Be sure to look at the 'sold for' price, rather than the asking, or starting, price. They're often two very different things...
Welcome pamela - as Carl indicated, the model 57 was discontinued in 1993, so if you wanted to buy one today, it would be through the used maket place. S&W also still makes a model 657 (also in .41 magnum) which is a stainless steel version of the model 57 that can be purchased new, or also on the used market.. Are you interested in a specific gun or did Bill's just happen to catch your eye (all his guns catch mine!!).