Hello : I am in the market for a new CCW and have decided upon the Taurus 85. I honestly believe it's the absolute best bang for a buck out there in the small frame revolver category. Anyway, I've noticed while shopping the various gun auction sites that the newest models have an angled cylinder release while the older models have the more traditional S&W style. Personally, I think the angled looks nicer on a small framed revolver. I am inquiring about the fact that some 85's have the serial # also imprinted on the right side of the barrel while others do not. What's up with that? When did the serial #'s begin showing up on the barrels (in addition to the frame?). Thanks.