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<p>[QUOTE=&quot;GDJMSP, post: 7942329, member: 112&quot;]All coins have tolerance ranges for size, weight, and composition that are established by the minting authority prior to the actual minting of the coins, and adhered to for as long as they are being minted. And this has been true for as long as coins have been being minted. But one must also keep in mind that throughout history the tolerance ranges for size, weight, and composition were constantly changing at the whim of the minting authority. </p><p><br /></p><p>That said, what you are saying about most coin catalogs and books only publishing the baseline info is quite true. But that is typically because those writing the books simply don&#039;t know what the tolerance ranges are. </p><p><br /></p><p>If one wishes to find out what actual tolerance ranges are for any given coin, they are almost always going to have to look for a specialized book on that specific coin series. And for a lot of coins, maybe even most coins, these specialized books may well exist but are virtually unheard of by most collectors. And are usually only commonly known by those collectors who specialize in that specific coin. These books can also be quite expensive at times because of the limited/small number of copies printed. This isn&#039;t always the case but it often is.[/QUOTE]</p><p><br /></p>

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