I'll soon be joining the club I just purchased this 58. I haven't received it yet. It seems to be factory nickel. It is stamped with a large "N" on the rear of the cylinder. I like guns with a little character. Even more if they've earned it on my own hip.
I've always liked 58's. I just wish they were .44's, either special or magnum. I have to add another caliber to my handloading supplies now.