don't have anything to test it with, prev. owner appears to have given it a good going over with polish, some black tarnish visible in spots, and a quick rub with a micro cloth over the 'silver' produces black oxide. don't think it's a very high grade anyhow.
p.s. - the photo was run thru an enhancer as it came out a bit off color - the cloth it sits on is really white.
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