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<p>[QUOTE=&quot;Broucheion, post: 24866893, member: 104887&quot;]Hi [USER=150064]@-monolith-[/USER],</p><p><br /></p><p>This is not odd at all. As explained in Lorber’s CPE and elsewhere, Ptolemaic coins made before the major coinage reform of coin series 3 (ca 260 BCE) have no dimples, while most of those afterwards do.</p><p><br /></p><p>Lorber: “<i>The reform of the bronze currency also introduced a change in fabric: a circular indentation appears near the center of the flan, usually on both sides of the coin. Metallographic studies have determined that these cavities were not a feature of the cast flans but were added before striking, so that the planchet could be turned on a lathe while its two faces were smoothed. This painstaking procedure was probably necessitated by the introduction of very large denominations, to ensure that the devices would be clear. Ancient moneyers obviously encountered difficulties in striking large flans and the process of striking affected the flan to only a few millimeters&#039; depth.</i>” [NB, footnotes omitted.]</p><p><br /></p><p>- Broucheion[/QUOTE]</p><p><br /></p>

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