According to Flayderman ref.#8A-040 this is an exceedingly rare variation of this model.   I’m sure he’s right as this is the first one in 35 years that I’ve ever seen.  The pistol retains about 95% of it’s original factory nickel finish. All the markings are crisp including the Bull-Dozer on the side of the barrel.  The action is crisp and tight.  A minty and very rare pistol that many of the famous old west bad guys such as Cole Younger carried. 
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