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<p>[QUOTE=&quot;gxseries, post: 2253425, member: 4373&quot;]I decided to do a bit of maths and I am a bit stumped. This is what I got when I calculated. Somewhat close for most of them.</p><p><br /></p><p>Fineness Density</p><p>0.999 10.49</p><p>0.925 10.36</p><p>0.900 10.31</p><p>0.835 10.20</p><p>0.800 10.14</p><p>0.750 10.06</p><p>0.600 9.82</p><p>0.500 9.66</p><p>0.400 9.52</p><p>0.300 9.37</p><p>0.200 9.23 </p><p><br /></p><p>I think there are some key assumptions here. One is that this is an alloy of silver-copper and there are no other trace metals. Second is that as suspected, that mints were purposely reducing silver content despite what was mandated. </p><p><br /></p><p>China and Korea in the past were notorious for this as whenever the price of copper shot up, they substituted it with other metals such as zinc, tin, iron, nickel, antimony etc. This practice has also affected silver coinage. I am not aware of any studies that have done on the silver alloy content so but there was definitely huge mistrust in the public because of poor mint practices in the late 1800s. </p><p><br /></p><p>I&#039;m somewhat suspecting that during financial difficulties, in particular WWI and WWII, mints may have done something questionable. As of what they may have done - it&#039;s definitely interesting to see some XRF results before any further speculation.[/QUOTE]</p><p><br /></p>

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