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<p>[QUOTE="moneycostingmemoney, post: 2793338, member: 86367"]Now I'm not condoning the cleaning of modern coins by any means<img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie14" alt=":angelic:" unselectable="on" unselectable="on" />, because that would make the glove wearers poo blood, but when cleaning bronze or copper ancients a good thing to try is hydrogen peroxide. You can get the high octane stuff just be careful not to get it on yourself (read its MSDS before you buy it). I just use the booboo grade first aid 3.5% and am patient with it. Changing the HP every 12 hours or so and washing the coin with dish detergent and a toothbrush/nylon bristle cleaning brush and drying it. It loosens many impurities while not directly negatively affecting the coins surface. I have tried the vinegar and lemon juice thing in the past while experimenting with suggestions and seeing the outcomes...those always leave copper/zinc Cents looking "off" like it was at ground zero on some southwestern US proving ground. </p><p><br /></p><p>[MEDIA=youtube]beWjk_Q6yZ4[/MEDIA][/QUOTE]</p><p><br /></p>
[QUOTE="moneycostingmemoney, post: 2793338, member: 86367"]Now I'm not condoning the cleaning of modern coins by any means:angelic:, because that would make the glove wearers poo blood, but when cleaning bronze or copper ancients a good thing to try is hydrogen peroxide. You can get the high octane stuff just be careful not to get it on yourself (read its MSDS before you buy it). I just use the booboo grade first aid 3.5% and am patient with it. Changing the HP every 12 hours or so and washing the coin with dish detergent and a toothbrush/nylon bristle cleaning brush and drying it. It loosens many impurities while not directly negatively affecting the coins surface. I have tried the vinegar and lemon juice thing in the past while experimenting with suggestions and seeing the outcomes...those always leave copper/zinc Cents looking "off" like it was at ground zero on some southwestern US proving ground. [MEDIA=youtube]beWjk_Q6yZ4[/MEDIA][/QUOTE]
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