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<p>[QUOTE=&quot;treylxapi47, post: 2168950, member: 41863&quot;]Ive tried a fun little experiment with nice results so far. I took an 80s clad proof set. Popped open the plastic slab and inserted a piece of coin world or CDN or whichever publication feels similar to newspaper on both sides, closed it back up and sat it in my windowsill. I live in eastern NC so we have fairly normal seasons with large temperature swings and humidity at times and ive been hoping that some toning will happen. </p><p><br /></p><p>I dated it on a piece of tape that keeps it closed, and I check it about every couple of months or so. </p><p><br /></p><p>Since October, Ive managed to pull a little blue off the edges and thats about it. I want to see how it fairs through the summer, but I doubt we will be seeing any rainbow tones or vibrant colors when all is said and done. </p><p><br /></p><p>I win these things all the time at our coin club meeting and thought this was innocent enough to see what would happen. </p><p><br /></p><p>I thought about setting up a couple different ones now to see the results. Two reactive materials that I would be interested in trying next would be tissue paper and matches from a match book. See if the sulfur in the 3 react differently with the coins. </p><p><br /></p><p>Just bored and want to see what my local environment in much more extreme conditions will be doing to my coins.[/QUOTE]</p><p><br /></p>

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