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<p>[QUOTE=&quot;physics-fan3.14, post: 1015186, member: 19165&quot;]I had thought about doing this experiment when I wrote this article, but didn&#039;t have the time.</p><p><br /></p><p>The next experiment I decided to investigate was prompted by some comments made by a forum member on NGC– but it carries important implications for many transactions. The discussion in question took place here: <a href="http://boards.collectors-society.com/ubbthreads.php?ubb=showflat&amp;Board=41&amp;Number=4288644" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://boards.collectors-society.com/ubbthreads.php?ubb=showflat&amp;Board=41&amp;Number=4288644" rel="nofollow">Why such a premium for Bullion?</a> The comments were made by Scott B and James, where they said </p><p><br /></p><p><img src="http://i277.photobucket.com/albums/kk68/physicsfan/various/IMG_7536.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>So, I broke out my brothers incredibly precise scale (he uses it to measure gunpowder to the tenth of a grain), and took some Wheat Pennies. I used Wheat pennies because I have a number of them in a variety of grades. I grouped 12 cents into three rough grade ranges – AU/UNC, VF/EF, and G/VG. Pictures of the 12 cents used are above. These cents were all from the period 1909-1937; during this period, the composition and standard weight remained constant at 3.11 grams. As you can see from the chart below, there is a definite weight difference between grade levels. The difference from Unc to VF/EF is minor, as only the highest points are being worn off. However, the weight difference from VF to G is significant. From Unc to G, approximately 4% of the weight of the coin is lost (the difference between the highest weight and lowest weight is even more – over 5% difference). </p><p><img src="http://i277.photobucket.com/albums/kk68/physicsfan/various/weights.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><br /></p><p>The significance of this difference comes when talking about buying circulated coinage for bullion silver value. Many, if not most, of the coinage sold this way will be fairly low grade circulated material. If you are paying for the coins as a multiple of face value, as is common, you must realize that as much as 5% of the silver content may be gone. If buying silver by measured weight, this problem is not an issue.[/QUOTE]</p><p><br /></p>

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