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<p>[QUOTE=&quot;GDJMSP, post: 426414, member: 112&quot;]Light itself can have an effect on toning, but a minor one. And different light, such as the different wavelengths put off by different types of lightbulbs isn&#039;t really going to matter much. At least as long as the bulb is far enough away to not heat the coin up.</p><p><br /></p><p>The thing with light is that it can cause a photochemical reaction on the coin. But that reaction and how it tones the coin is largely dependant on the other variables like humidity, temperature and air content.[/QUOTE]</p><p><br /></p>

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