Everyone talks about the Python, but not nearly as many talk about the predecessor. The Colt 3 5 7 Magnum revolver was first and it has the same internals as the Python right down to the same silky smooth action. Of course it doesn't have the full lug with the ventilated rib and the Royal blue finish, but it is a fine revolver. Colt made the 3 5 7 revolver from 1953 - 1961 then phased it out. I found this one at an estate auction last year.Won the bid at $390 and after I finished paying the taxes and buyer's premium I paid out $450. No complaint there. I thought it would go higher, but there was no interest in it. I won't complain. It's clean and in good shape. The serial number is just four digits (# 2***). According to the Colt Proof House website it was made in 1953 ( or 54). The year that the model was introduced. Unfortunately the wooden target grips didn't come with it, but that just gives me something to look for. I've wanted a Colt 357 or a Colt Trooper in 357 for several years. Ideally I wanted the 6" barrel so this was a lucky find for me. People are starting to figure out the 3 5 7 Magnum, but they can still be found for a much better price than the Python.