My father has had this gun for some time and I never really looked at it close. Look at the marking stamped on the left side... kinda looks like the Colt horse but then there seems to be something strange with it. I have compared it to the Colt Python 6" .357 but can't seem to find a model that is exactly the same. The gun is very well built and shoots very well. Is it a Colt Python or some kind of strange knock-off?