The HP is a 70's vintage, bought new. Second handgun purchase, the Python was the first. It's had work done on it, over the years.
I'm a southpaw, so I had a Cylinder & Slide ambi safety installed. Replace the fragile adjustable rear sight, with a Millet, after noticing it was bent. Master Gunsmith Frank Paris, who specialized in Pythons and HP's did the hard chrome and removed the magazine disconnect to get a decent trigger pull.
The HP was my house gun, for many years, when I lived in Detroit. That's the reason for the Crimson Trace Laser Grips.
Started loading cast for it, about the same time I did the Python.