This isn't a carbine or a .357 magnum, but it's a takedown and I like it a lot. It's a 1906 or 1909 (forgot now) .44-40 with a ton of custom order features. Shotgun butt, round barrel, tang sight, folding rear sight, and pistol grip with cap. My dad traded a Luger for it in the late 50s. I won a cowboy shoot with it once but it was a pretty small match. I discovered that the brand in the stock went to a ranch about three hours from where I'm sitting right now.
Good luck on your quest for that .357. A 16 incher sounds like a bunch of fun.