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<p>[QUOTE=&quot;-jeffB, post: 4016819, member: 27832&quot;]Hey, let&#039;s not open a new can of worms until we&#039;ve finished off the can we already opened. <img src="styles/default/xenforo/clear.png" class="mceSmilieSprite mceSmilie11" alt=":rolleyes:" unselectable="on" unselectable="on" /></p><p><br /></p><p>The woodie effect arises from streaks of metal having different compositions. It <i>may</i> be visible in a coin fresh out of the press, but I think it <i>usually</i> appears when those different-composition streaks <i>tone</i> differently on exposure to air. Some streaks may oxidize more quickly, turning brown faster, or they may just form a different-colored oxide mix over the same period of time.</p><p><br /></p><p>Is toning environmental damage? That&#039;s the new can of worms. Maybe &quot;55-gallon drum&quot; is more appropriate.[/QUOTE]</p><p><br /></p>

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