I've always been fascinated by the supper short Smith's, the 2" barrel guns that are otherwise a pain in the ass to shoot, but they do have some history behind.
A very rare Smith and Wesson 8 shot .38 special revolver, initially put together after 9/11 as a proposal to arm aircraft crew members. The project didn't have much success, as this is the only picture I've been able to find. The designation doesn't help, as it was named model 320 like another rare Smith revolving rifle.
The "320" is however, the first appearance of the 2" barrel, not much further down the road, in 2003 Smith would come out with the 625-10 (although most of them were stainless, there are some "pinto" examples likes this one), a .45 ACP caliber revolver that shares the same barrel format, this are also pretty rare, as only 300 were made, the short run was also plagued by reports of cracked frames.
The original concept came back to the market in 2008 and is still available today, as the 327, with some touches from the performance center, and in a .357 magnum chambering this one finally cached one and is a not so rare example of the 2" barrel Smith.