I've got my eyes on a couple of older stainless smiths (model 63 no dash and 629-1). The owner got them from a collector and doesn't know if they have been fired. Are there any tell-tale signs if the gun has been fired after it was shipped from the factory? Did S&W test fire all 6 rounds back then, or just 1? Any other hints I can go off of, such as flame cutting from the top strap, powder traces on the front of the cylinder? I imagine you should shoot a box or two and clean the stainless up pretty good.