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<p>[QUOTE=&quot;GSDykes, post: 2209338, member: 73321&quot;]Yes, let me see a good image. I have used vinegar, it can accomplish some good things. Hydrogen peroxide is known to help clean zinc coins, and aluminum coins, as to copper coins cuprous oxide (a thin tarnish like appearance) is common and can be successfully removed with pure white vinegar. If properly done, rinse well in distilled water. I often finish by gently scrubbing the coin with a toothbrush with Joy dish detergent. Dry, then rinse in acetone. let dry. Some coins need protection, before putting into a 2x2, I rub in a very light coating of mineral oil, which prevents future oxidation.&nbsp; But not all coppers/bronzes need this. It is important that you remove all of the vinegar, even using baking soda if the coins has lots of crevices. But let me see your pic. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie70" alt=":panda:" unselectable="on" unselectable="on" />[/QUOTE]</p><p><br /></p>

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