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Treasure Hunting
Cleaning Your Finds
Cleaning cupronickel coins 1930's French Francs
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<blockquote data-quote="B5MECH" data-source="post: 311438" data-attributes="member: 6829"><p>I think citric may stain them copper pink, I'd try just wet the coin and rub between your fingers with dry bi-carb til you get them to where you want</p><p>Moist not too wet so it's a fine abrasive, if there too far gone polish with metal polish <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite6" alt=":cool:" title="Cool :cool:" loading="lazy" data-shortname=":cool:" /></p></blockquote><p></p>
[QUOTE="B5MECH, post: 311438, member: 6829"] I think citric may stain them copper pink, I'd try just wet the coin and rub between your fingers with dry bi-carb til you get them to where you want Moist not too wet so it's a fine abrasive, if there too far gone polish with metal polish :cool: [/QUOTE]
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Treasure Hunting
Cleaning Your Finds
Cleaning cupronickel coins 1930's French Francs
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