I want to believe that this is an original nickel finish because that would be just too cool for words. But I'm afraid it may be a refinish because when I enlarge the heck out of the photos I think I see some surface irregularities under the nickel. If it is a refinish, it is a pretty good job, and one that observes the factory protocol on parts to leave un-nickeled.

If that gun were mine, I would have to letter it to answer the question. "I got to know."

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David Wilson