I have the 1917 S&W that my grandfather bought from the armory at Camp Dodge, Iowa when he mustered out of the Army Medical Corps in July of 1919 -- and I have the original paperwork to prove it! Sweet shooter, and a thrill every time it goes "BOOM!"
I've had folks scold me for shooting such a nice antique. My feeling is this: Yes, it's a century old, but given its pristine condition it couldn't have been fired 500 times in its life. It was designed and built to last many thousands of rounds, and the ammo I fire in it is identical to the ammo it was designed to shoot. I'm going to shoot it my share -- a couple dozen rounds two or three times a year -- care for it religiously, and pass it on to the next generation.