winchester1: I have the same revolver - actually, mine started life as a 28-2, the Highway Patrolman - the plain jane version of yours, but then I sent it off to S&W to make it look like yours. Mine was made in the late 60s and has a 6 digit serial number, so yours copuld be a bunch older. I think the -2 designation with the recessed chambers was phased out in the late 70s or early 80s.
Even though this is one beautiful revolver, most dealers look askance at the older blue steel guns in favor of the newer stainless versions of the same. In this neck of the woods you could get that piece for around $350 - maybe even a bit less if you were a good talker.
That revolver could be at least 40 years old or older. It doesn't matter, S&W will continue to service it if necessary. But even at its age, I'm sure that Model 27 can still shoot. HTH. Mikey.