This is the problem and why the numbers are meaningless - 10 US coin series (2 grades each for 20 coins total) So they check the prices on...
Let's put it this way, you can buy them from dealers in original case for about $15.
Any time you want to the composition of a US coin just look in the Red Book.
stainless it's a very complicated issue and there is a great deal, a truly great deal, to learn before you can even begin to understand this issue...
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