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1864 IH struck on silver plan.
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<p>[QUOTE="Oldhoopster, post: 3225977, member: 84179"]The nominal weight of a copper nickel cent is 4.67 gms. Assuming your 0.1 gm resolution scale has been recently calibrated (you do this regularly, right?), your coin could weigh between 4.25 - 4.35 gms which makes it 6.9%-9.0% light. (if your scale has poor accuracy or needs calibration, then these numbers are worthless).</p><p><br /></p><p>Now it is apparent that your coin suffered significant corrosion damage. There is a lot of pitting and weak details that indicate metal is missing. Could this account for the lighter weight? Or did you happen to find an undocumented transition piece that has suffered corrosion or some other damage that resulted in the abnormal appearance? </p><p><br /></p><p>The 14th century philosopher and Franciscan Monk, William of Ockham once said that simplest explanation is usually the correct explanation.</p><p><br /></p><p>BTW: The Newman Numismatic Portal has scanned a number of mid-19th century documents from the US Mint. Since you are claiming that the coin may be something rare and different, you may be able to find some evidence to back up your 1864 transitional weight/composition planchet theory. A little evidence pointing in that direction can go a long way. However, I’ll place my bet on William of Ockham.[/QUOTE]</p><p><br /></p>
[QUOTE="Oldhoopster, post: 3225977, member: 84179"]The nominal weight of a copper nickel cent is 4.67 gms. Assuming your 0.1 gm resolution scale has been recently calibrated (you do this regularly, right?), your coin could weigh between 4.25 - 4.35 gms which makes it 6.9%-9.0% light. (if your scale has poor accuracy or needs calibration, then these numbers are worthless). Now it is apparent that your coin suffered significant corrosion damage. There is a lot of pitting and weak details that indicate metal is missing. Could this account for the lighter weight? Or did you happen to find an undocumented transition piece that has suffered corrosion or some other damage that resulted in the abnormal appearance? The 14th century philosopher and Franciscan Monk, William of Ockham once said that simplest explanation is usually the correct explanation. BTW: The Newman Numismatic Portal has scanned a number of mid-19th century documents from the US Mint. Since you are claiming that the coin may be something rare and different, you may be able to find some evidence to back up your 1864 transitional weight/composition planchet theory. A little evidence pointing in that direction can go a long way. However, I’ll place my bet on William of Ockham.[/QUOTE]
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1864 IH struck on silver plan.
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