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<p>[QUOTE="cladking, post: 27477, member: 68"]The attrition on many moderns caused by handling, collectors, minting procedures, and neglect is staggering. The zinc pennies are corroding at an alarming rate. The '68 mint set cents are universally carbon spotted. Apparently every single Philly cent in these sets has at least small carbon spots on both sides. 95% of them are so ugly that most collectors would simply not use them. This may seem inconsequential to most people since few collect modern coins and there are substantial numbers of rolls set aside, but well struck gems are very rare in rolls. Perhaps the only true high grades of these will be the small handful that were removed from packaging and cleaned before they got spotted. Other coins have suffered in large numbers also and some of them are not found in rolls because hey simply weren't set aside initially in any significant numbers. </p><p><br /></p><p>Today we have far better materials for storing coins than ever before but collectors tend to pay far less attention to safe handling. Even here though, some of the materials in use today have not proven their value in the long term. Others have been found to be wholly inadequate only after great damage has been done. Try finding a 1975 Japanese mint set in pristine condition or better yet any of the coins from this set. The plastic simply ruined the coins very slowly so now finding nice japanese coins from 1975 is quite difficult.[/QUOTE]</p><p><br /></p>
[QUOTE="cladking, post: 27477, member: 68"]The attrition on many moderns caused by handling, collectors, minting procedures, and neglect is staggering. The zinc pennies are corroding at an alarming rate. The '68 mint set cents are universally carbon spotted. Apparently every single Philly cent in these sets has at least small carbon spots on both sides. 95% of them are so ugly that most collectors would simply not use them. This may seem inconsequential to most people since few collect modern coins and there are substantial numbers of rolls set aside, but well struck gems are very rare in rolls. Perhaps the only true high grades of these will be the small handful that were removed from packaging and cleaned before they got spotted. Other coins have suffered in large numbers also and some of them are not found in rolls because hey simply weren't set aside initially in any significant numbers. Today we have far better materials for storing coins than ever before but collectors tend to pay far less attention to safe handling. Even here though, some of the materials in use today have not proven their value in the long term. Others have been found to be wholly inadequate only after great damage has been done. Try finding a 1975 Japanese mint set in pristine condition or better yet any of the coins from this set. The plastic simply ruined the coins very slowly so now finding nice japanese coins from 1975 is quite difficult.[/QUOTE]
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