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Including a soak in Thiourea & sulfuric acid, which removes silver plating. Several years ago, before thiourea & sulfuric acid was used to detect silver plate, I sold a bangle as solid silver. Stamped 925.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.