Message:

<p>[QUOTE=&quot;Marshall, post: 2578615, member: 21705&quot;]Perhaps getting back to the minting process will clear things up a bit.</p><p><br /></p><p>The coin is produced when a die is used to impress an image onto the finished coin. </p><p><br /></p><p>A die variety is simply a die which has been identified by some markers. </p><p><br /></p><p>A die state is a recognizable point where additional markers appear or change significantly as the die is used and deteriorates or is changed by grinding or polishing. A die stage would be that infinitesimal change to the dies with every use which could theoretically produce a perfect sequence of coins produced from that particular die.</p><p><br /></p><p>A hub is a tool to make dies and not the coins. It is like a punch in that regard. So identifiable hubs are not varieties in themselves, but create a grouping of varieties because of the hub used.</p><p><br /></p><p>Things which occur at the mint which do not affect the die but do affect the coin are errors. </p><p><br /></p><p>This would include things like Longacre Doubling or strike doubling. That would have no impact on the die and additional strikes from the die would not have doubling. </p><p><br /></p><p>This is different than doubling of the die itself which is done during the making of the die, probably by slight misalignment of the hub while attempting to restrike the die to increase detail. But once produced, that particular die variety continues to produce doubled coins for it&#039;s remaining life.</p><p><br /></p><p>This would also include things like clips or wrong planchets or foreign material on the dies or planchets. Grease, polish and even polishing cloths have left such errors. Sometime a previously struck coin is not ejected and a reverse image appears from the previous coin.</p><p><br /></p><p>Anything which happens after the coin leaves the mint is simplt Post Mint Damage or PMD for short. It doesn&#039;t matter whether it enhances the appearance or not. Many smoothed coins or cleaned coins are attractive but it&#039;s still PMD.[/QUOTE]</p><p><br /></p>

Your name or email address:

Do you already have an account?

• No, create an account now.
• Yes, my password is:
• Forgot your password?

Stay logged in