I am currently spending a couple weeks in Eastern Ohio visiting my parents. I have a few guns that I keep here for my enjoyment while visiting. The highlight of my Eastern collection is a S&W Model 17 that my father has owned since before my birth, as far as I know. He offically gave it to me a couple years ago. I have no idea how he originally got it, he has no interest in guns at all. Anyway, the serial number is K3373XX. When was it made ? Also, could someone go through the story again about the difference between the K22 and the Model 17 ? My dad always called this gun a K22, but I don't believe that is correct; or is it ?