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<p>[QUOTE=&quot;Roman Collector, post: 8066682, member: 75937&quot;]That&#039;s the way it left the mint. Jere M. Wickens, in his essay, &quot;<a href="http://www2.lawrence.edu/dept/art/BUERGER/ESSAYS/PRODUCTION.HTML" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www2.lawrence.edu/dept/art/BUERGER/ESSAYS/PRODUCTION.HTML" rel="nofollow">The Production of Ancient Coins</a>,&quot; written for <a href="http://www2.lawrence.edu/dept/art/BUERGER/INTRO/CONTENTS.HTML" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www2.lawrence.edu/dept/art/BUERGER/INTRO/CONTENTS.HTML" rel="nofollow"><i>Bearers of Meaning: The Otillia Buerger Collection of Ancient and Byzantine Coins at Lawrence University</i></a>, notes that flans &quot;were cast en chapelet, that is, using open or closed moulds in which a number of mould hollows were connected by channels.&quot; This resulted in a &quot;runner&quot; or sprue between the cast flans, which would be removed before striking. Sometimes, the process of breaking off the sprue removed a chunk from the flan&#039;s edge, leaving what is known as a &quot;flan chip.&quot;</p><p><br /></p><p>Your coin simply has some attached casting sprue. It&#039;s just a byproduct of the manufacturing process and it makes the coin interesting. Evidence of casting sprue removal is seen on this denarius at the 9:00 position on the obverse. I enjoy what is called &quot;technical collecting&quot; -- coins that demonstrate ancient manufacturing techniques. </p><p><br /></p><p><img src="https://www.cointalk.com/attachments/domna-fecvnditas-four-seasons-denarius-jpg.1312989/" class="bbCodeImage wysiwygImage" alt="" unselectable="on" />[/QUOTE]</p><p><br /></p>

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