Say more please. I'm under the impression that S&W has (had?) names for families of revolvers such as Target Masterpiece, Combat Magnums, Combat Masterpiece, Military & Police, Night guard, Centennial, Highway Patrolman.
Each of these monikers could contain multiple models. The 19 and 66 were Combat Magnums featuring adjustable sights and chambered in .357 magnum. The Combat Masterpieces were .38 special. The Target Masterpiece was the model 14.
This is why I said "combat magnum" was a marketing designation. A model 19 someone calls a "combat magnum" is not some special version of a model 19.
I may be misunderstanding this. I got my info off the Internet, after all.