I picked up a K 22 with 6" barrel Tuesday. It locks up tight and has a little surface rust that I'm gonna work on tomorrow. It's got some kind of cheap snap on rubber grips that I'll probably replace with some fake plastic stags until I can find something more suitable. It's a four screw with no model number and looks like it was made in 1957. I was nine years old then. I didn't really need it but an old friend in not so good health was selling his collection so his wife won't have to deal with it later and the price was cheap. It's got the name "Hugh Harrison" nicely engraved on the left side of the revolver and being that it's only a shooter anyway that doesn't bother me. I do wonder who Mr. Harrison is/was. I didn't really need this gun because I have a five screw from 1952 that's in a little better shape, but again, it was cheap. I googled Hugh Harrison and found about a million of them which I figured I would because that name combination is fairly common. Hugh, if you're still out there speak up, I've got your gun. I guess I'll get it lettered and see what comes up.