I know this is an old thread ,but the original Colt Trooper was in 38spc.

In the same time era they made the Colt 357 Mag,and thats just the

way it was roll stamped. It was so popular that Colt lenghtend the

barell and put there best finnish on it and called it the Python.

The Colt Trooper even in it's best or latest version would never be

worth as much as the Colt 357 Mag.

For collectability the Colt 357 Mag would be worth more,but about the

same as an early Smith Reg Magnum.

I would rather have a Mod 27,Reg Mag,or a Mod 28.

JMO Bob