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Why does NGC only sometimes weigh coins?
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<p>[QUOTE="GDJMSP, post: 7677654, member: 112"]Blake, you need to go back to what I said in my first post - </p><p><br /></p><p><br /></p><p><br /></p><p>Look at what I made bold in the post above. That's what you're not taking into account. Let me give you an example.</p><p><br /></p><p>The specified weight for a Morgan dollar is 26.730 grams. BUT - the tolerance range for the weight of every Morgan dollar is 26.633 grams at the low end, and 26.827 grams at the high end. All by itself that's a weight difference of 2 tenths of a gram that coin could have weighed when it left the mint.</p><p><br /></p><p>Then if you add in the possible differences of the slab materials itself - which could easily be 3 tenths of a gram or maybe even more - then you have a possible weight difference of a half a gram. And that's without taking any clipping into account.</p><p><br /></p><p>So there's no way that you can use the weight of a slabbed coin to determine an accurate weight for the coin. Because you don't even know what the coin weighed when it left the mint, or the true weight of the slab. And if the coin was clipped, that merely complicates matters even more.</p><p><br /></p><p>As I said in my first post about this, weighing a slabbed coin might get you close - with close being defined as to within a half a gram or more - but that's about as close as you can get. And when it comes to coins, that's not close at all.[/QUOTE]</p><p><br /></p>
[QUOTE="GDJMSP, post: 7677654, member: 112"]Blake, you need to go back to what I said in my first post - Look at what I made bold in the post above. That's what you're not taking into account. Let me give you an example. The specified weight for a Morgan dollar is 26.730 grams. BUT - the tolerance range for the weight of every Morgan dollar is 26.633 grams at the low end, and 26.827 grams at the high end. All by itself that's a weight difference of 2 tenths of a gram that coin could have weighed when it left the mint. Then if you add in the possible differences of the slab materials itself - which could easily be 3 tenths of a gram or maybe even more - then you have a possible weight difference of a half a gram. And that's without taking any clipping into account. So there's no way that you can use the weight of a slabbed coin to determine an accurate weight for the coin. Because you don't even know what the coin weighed when it left the mint, or the true weight of the slab. And if the coin was clipped, that merely complicates matters even more. As I said in my first post about this, weighing a slabbed coin might get you close - with close being defined as to within a half a gram or more - but that's about as close as you can get. And when it comes to coins, that's not close at all.[/QUOTE]
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Why does NGC only sometimes weigh coins?
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