I just picked up this S&W model 19-5 for $450 and I am trying to find out how old it is, if anyone can help please add your two cents!! The serial number is ACE97**
So it's a year after Smith got rid of the recessed chambers and "pinned" barrel.
While the recessed feature is cool and does bring a bit of a premium, I know of fellas who prefer the 19-5 for competitions and speed loadings because the recesses had a habit of picking bits of grit, making full seating of the cartridges problematic.