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					Originally Posted by  kino
					 
				 
				I tried the toothbrush and WD-40 method before and was unsuccessful. I was tempted to use fine steel wool but I’m afraid of the possibility of snagging an inlay. 
 
This looks like red rust to me. Photo is blurry. 
			
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 I don't see the rust in the photo, but if you see firsthand i don't doubt you. 
I would try spraying on WD-40 and really letting it soak in for a bit before brushing. 
As for steel wool, 0000 or even 000 grade should not cause any damage, at least not in my experience. As always, work slowly and carefully.