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1887 one penny victoria
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<p>[QUOTE="TDRismyname, post: 973219, member: 26939"]It depends on how well it's cleaned, and what acid is used. If the person doing the cleaning uses anything with a PH less than 2.5 or 2 then you will be removing metal in large quantities... along with oxidization. The tarnish on a silver coin is a gain of weight over time, so it should be obvious when the coin weighs less by a tenth, VS more by a tenth... and when a coin looks like it was just minted and is 150yo, how exactly did you keep it airtight for 150years? As far as "normal" loss of metal, it should show in scratches, etc. That's the loss. Metal doesn't just dissappear assuming same die and you also have to consider that coins like an 1983-CC or 1893-0/CC are going to be scrutinized much more. There is usually a reason those coins were kept in MS condition (Nuimismatists). My coins were given by my great aunt (80%) and so far not one out of 1000 or so pre-war currency nickles, dimes, half-dollars, dollars, and even a 1928 $2 bill are worth more than a $100 as far as I know, because she wasn't a coin collector... she just forgot a bag of coins in her cellar.[/QUOTE]</p><p><br /></p>
[QUOTE="TDRismyname, post: 973219, member: 26939"]It depends on how well it's cleaned, and what acid is used. If the person doing the cleaning uses anything with a PH less than 2.5 or 2 then you will be removing metal in large quantities... along with oxidization. The tarnish on a silver coin is a gain of weight over time, so it should be obvious when the coin weighs less by a tenth, VS more by a tenth... and when a coin looks like it was just minted and is 150yo, how exactly did you keep it airtight for 150years? As far as "normal" loss of metal, it should show in scratches, etc. That's the loss. Metal doesn't just dissappear assuming same die and you also have to consider that coins like an 1983-CC or 1893-0/CC are going to be scrutinized much more. There is usually a reason those coins were kept in MS condition (Nuimismatists). My coins were given by my great aunt (80%) and so far not one out of 1000 or so pre-war currency nickles, dimes, half-dollars, dollars, and even a 1928 $2 bill are worth more than a $100 as far as I know, because she wasn't a coin collector... she just forgot a bag of coins in her cellar.[/QUOTE]
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