There is a thread on the 3 inch S&W Model 60 and that called this gun to mind. I bought this recently and have to say I am delighted with it. It apparently hit the pavement at some time in its career, and although it is a little scuffed up on the trigger guard and on the barrel, it locks up tight and is properly timed. IMHO, it has not been shot much, but that can be corrected.
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For those of us "of a certain age," it brings to mind the gangster and film noir movies of the 30's and 40's, but it was a very popular Police service weapon, especially in those departments that required officers to be armed 24-7. Cops didn't make very much in those days, and one gun that fulfilled two functions was a blessing. At 23 ounces it was half a pound lighter than the S&W M&P, while the Colt Official Police weighed nearly 3/4's of pound more. My Uncle Don carried one as a Reserve Officer in Redford Township, though his was blue. It is like a 4 inch Detective Special. A fellow could do a lot worse than to choose one of these for a personal defense weapon. Now I just need to make a holster.