I have a 1977 vintage 28-2 6" that I bought a couple years ago.
The guy I bought it from claimed he got it from a retired CHP officer.
That might be BS given that 1977 is late in the revolver era, and I think the CHP was issuing K frames.
The gun has ridden many miles in a holster given the bluing wear. But the action an barrel is very good. This is probably typical of a CHP officers gun.
It had Pachmayrs on it when I got it, but I figured it needed an upgrade in it's retirement -- so I put on Cocobolo Ahrends grips.