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<p>[QUOTE=&quot;dougsmit, post: 2914593, member: 19463&quot;]It is much easier to find die matches among rare coins than common ones.&nbsp; There are coin types that were made only from a single pair of dies so ever example will be a die duplicate (both side match).&nbsp; Die links (coins with one matching and one different die) are much more valuable since they can establish a relationship between the two dies and all the other coins that link to either side.&nbsp; Chances of finding duplicates or links of late Roman coins that were made by the millions week after week are slim unless you have access to thousands of specimens.&nbsp; There are many things to consider so you can not prove anything without really careful study.&nbsp; For example, if a hoard is found consisting of a thousand coins straight from the mint lost on their way to be a military paychest, it is possible that all thousand could have been made the same day from the same dies.&nbsp; This would be hard to duplicate with coins that had been spent a couple times and mixed with other coins. </p><p><br /></p><p>I believe that serious collectors should try to learn the differences between die characteristics and differences that occur due to striking, wear, corrosion etc. On the page benhur676 so kindly mentioned, I posted&nbsp; &#039;quiz&#039; image asking student/readers to name the die links and die duplicates in the image.&nbsp; The answers are below the image so you can cheat or not as you see fit. Click to enlarge.</p><p><img src="http://www.forumancientcoins.com/dougsmith/die04.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> </p><p>Answers below after a little space:</p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p><br /></p><p>Answers: </p><p>Obverses: A=G; B=H; D=E=F; J=K</p><p>Reverses: A=G; C=F; D=E; B=H</p><p>Therefore coins A&amp;G, B&amp;H and D&amp;E are die duplicates (both sides match).</p><p>Dies of coins I&amp;L are not linked to others shown.[/QUOTE]</p><p><br /></p>

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