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<p>[QUOTE=&quot;tbc, post: 2786348, member: 72929&quot;]Here is a demo of what I use, the first stage is pretty much the same as the OP&#039;s, an acidic solution with a good soak in water afterwards. Then I use some aluminium foil, wet it, place the mat side against the coin and cover the whole coin. Press it into the coin and fold across the edges so it is secure. Then with a wet cotton bud gently work the foil into the lettering and image of the coin on both sides, rather like doing a brass rubbing. You want as much of the foil in contact with as much of the coin as is possible.</p><p>Leave it for about 10 minutes, it will stink (hydrogen sulphide) and when you remove the foil the coin will be a lot darker. Then just use the same cotton bud/tooth brush with some normal dish washing detergent and gently scrub it, drying it with a cloth.</p><p>Repeat the foil stage as necessary.</p><p>Never be tempted to rub the coin with the foil, it will do it no good!</p><p>1 is the original coin. 2 is after the acidic solution. 3 is after the foil and 4 is after the wash.[ATTACH=full]646008[/ATTACH][/QUOTE]</p><p><br /></p>

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