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<p>[QUOTE=&quot;jrg79, post: 25483921, member: 161676&quot;]Quick question: does anyone know how much weights tended to vary amongst genuine specimens of early 19th century coins (say from 1800-1830 or so)?</p><p><br /></p><p>The reason is that I just got started weighing some of my old pieces with a scale and I was surprised by how much variation there was from the &quot;official weights&quot; published on the PCGS website. These are mostly low-grade, common date copper coins and varieties that I have no reason to suspect are fake, and many were 10% or more underweight!</p><p><br /></p><p>They seem to be the right diameter so I doubt this is due to shaving of the edges -- maybe they were made of impure copper? If an old copper coin weighs less than 90% of what PCGS says it ought to, should I be worried? Or less than 80%?</p><p><br /></p><p><b>Has anyone compiled statistics such as: &quot;for this type of coin, the average weight is 5.44 grams, but 95% of genuine specimens weigh between 5.2 and 5.49 grams&quot;? </b>(For instance, I just made up the ranges, but 5.44 g is what an old Draped Bust Half Cent should weigh.) If so, this would be really useful to know![/QUOTE]</p><p><br /></p>

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