Until I get the hammer repaired or find a good Colt hammer at an affordable price, I'm contemplating installing a Pietta hammer - stainless or nickel.
I've been told the Pietta hammer will drop in and work and the checkering pattern looks closer to early 1st generation than the one in it.
I pulled the hammer from one of my Cimarron Eleminator 8s and put it in the old gun. It fit and swong in fine and notches look to be in same place. The hole for the hand in the Pietta hammer is too small for the Colt hand. But that's no step for a stepper.