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Old November 26, 2012, 09:58 PM   #4
Senior Member
Join Date: December 20, 2007
Location: S.E. Minnesota
Posts: 4,295
Try a brief soak in vinegar. The black should turn kind-of pink. Then you should be able to polish it using whatever method you like for dirty yellow brass.
"The only way to stop a bad guy with a gun is with a good guy with a gun"
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