I recently picked up this coin. It is in AU-Unc condition but there are some ugly black spots on the reverse. Should I leave it? Send it some where to have it cleaned and slabbed?
A brief dip in E-Z-Est (Jeweluster) coin cleaner might significantly reduce the dark spots, but be aware that you would then have a bright silver coin with its already visible wear (so may look slightly odd). Personally, if it were mine, because there's not great numismatic value, I would probably do it just for appearance. A patina will return eventually, after a long time.
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