A soak in diluted CLR might be the ticket. Based on its current condition, that's what I would do.
Yeah, I'm thinking that that is patina on the exposed brass. I suspect you'll end up using the ketchup or a vinegar solution to remove it.i think the majority of the silver is already gone, there's a lot of brass color to it already.
i think the majority of the silver is already gone, there's a lot of brass color to it already.
That's what I thought about my Single Ring too. But, after hitting it with Blue Magic (available at auto parts stores), I found that to not be the case. The silver was mostly intact.