Hi hank7421. Since you are not being overwhelmed with answers, and understanding I am not an expert in this arena, I’ll just tell you what I’d do. Hopefully someone will come along and give you a more authoritative answer. I would use a very clean, soft, cotton cloth and Simichrome. I suspect it would not take a whole lot of elbow grease to get the job done. Then finally brush off any remaining residue with a soft brush. That’s what I would do until someone told me something better. Simichrome is amazing stuff.
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