"How about the model 60 Smith and Wesson?? Is this a rare find?? Yes, 3" barrel, 357."
No, not particularly. 3" Model 60s in both .38 and .357 are fairly common. I generally at least one or more at each gunshow I hit, and occasionally see them in the local shops.
As someone mentioned previously in this thread, it's likely that there are more 3" J frames than there are any other frame size.
Years ago I had a 3" square butt 36 in nickel that I ended up selling to a friend.
Last December I picked up a 3" round butt 36 blue to replace it.
3" I and J frame .32s are also fairly common.