I have never heard of this particular model until just the other day someone briefly mentioned it in another forum. I assume it is a revolver vs a semi-auto pistol; perhaps an N-frame but, don't really know. I checked out the Standard Catalog of S&W, 3rd Ed and didn't see it listed in the index. Don't see any mention of a Model 47 in Roy Jinks' History of Smith & Wesson (Rev. 10th Ed) either. Was there ever a Model 47 and in what caliber was it made?