My primary reason for choosing the Model 19, as opposed to the Models 10, 13, 14, or 15 is because it has adjustable sights and is chambered in .357 Magnum.
That gives it a leg up in overall versatility over the fixed sight 13 or the .38 Special chambered 10, 14, and 15. There are those who consider adjustable sights on a combat revolver to be a detriment, but I'm not one of them.
The truth is that when I carry one of my Model 19s I generally load them with .38 Spl. +P ammo, but I like having the ability to carry full-bore magnums.
That said, under no circumstances would I ever feel poorly or underarmed with any of the Smith & Wesson K frame revolvers chambered in .38 Spl. or .357 Magnum.
The only one I generally wouldn't pick is the Model 12. The Model 12 (I have a 2" barreled one) is a joy to carry because it's so light, but that pays you back in harsher recoil. There's also the problem that most Model 12s have a thinner grip frame, which makes getting better grips a problem (I know people who have resorted to making spacers to fill the gap.
Also, because the Model 12s were generally first generation light-weight aluminum frames, it's not unknown for them to crack with a lot of firing, especially with more powerful defensive ammunition.
OK, all that aside, VERY nice find, Mk. Shows honest, but not a lot, of wear.