I have what I believe to be a S&W Model 60. I cannot find a 60 on it anywhere and it is nickel plated. 1 7/8" pinned barrel, 5 round, .38 special. The number on the barrel bottom under the ejection rod and on the cylinder match. The serial number? However, a lower number (by 18,000) is on the frame behind the yoke and on the yoke itself. I am guessing that it is after market plated stainless. Any info would be appreciated. It's at the bottom of the pic. I think I should get a good book on Smith's.