I wish I had a dollar for every time somebody comes to this forum with a model 19 or model 3t6 that is supposedly stainless steal. Smith and Wesson does make revolvers in stainless but the model number will start with a 6. If they made a stainless gun it would make no sense whatsoever to mark it as model number that they make in carbon steel. It would not be a mistake they would make. A stainless gun would never be mismarked and then go through countless more steps to completion with every department not recognizing the mistake. It just doesn't happen. Many finishes on the other hand have been created to appear as a stainless gun. The look is sought after by many hence the reason it is so well duplicated.