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<p>[QUOTE="BenSi, post: 7439364, member: 95174"]Hi Herberto, </p><p><br /></p><p>They are not necessarily bigger or heavier but the tend to be better made. We use to joke the further from the capital the sloppier the coin. </p><p><br /></p><p>The tetartera minted in Constantinople are always rarer, in fact Grierson thought they were created for ceremonial use only. Michael Hendy, the author of the catalogs that organized the time period disagreed. He was right. </p><p><br /></p><p>Michael Hendy was asked to write the volume IV of the Dumbarton Oakes Catalog of coins, when that was published almost 30 years after his ground breaking work he separated the Metropolitan ( Constantinople ) minted coins from the other tetartera because DM Metcalf had analyzed the coinage and found out that the Metropolitan tetartera had silver added. Michael Hendy repeated the experiments and he too found out they had silver content in them. 2-4% , doesn't not sound like much but a billion trachy had 8%. </p><p><br /></p><p>I believe these Metropolitan coins originally had a silver wash over them. I have seen a few that way and I do own one. I have also seen numerous with traces of silvering still visible. </p><p><br /></p><p>Here is an Alexius Metropolitan Tetarteron SBCV-1923 from my collection.</p><p>[ATTACH=full]1290841[/ATTACH] </p><p><br /></p><p><br /></p><p>To learn more read this post I wrote, it goes through the history of the coin and my observations of collecting them for the past twenty years.</p><p><br /></p><p><a href="https://www.cointalk.com/threads/disecting-a-denomiation-the-12th-century-byzantine-tetarteron.360937/" class="internalLink ProxyLink" data-proxy-href="https://www.cointalk.com/threads/disecting-a-denomiation-the-12th-century-byzantine-tetarteron.360937/">Disecting a Denomiation the 12th century Byzantine tetarteron | Coin Talk</a></p><p><br /></p><p>Strange enough, even though it was originally proven in the 1970's none of the collectors catalogs notate a difference in the coin other than it being minted in Constantinople.</p><p><br /></p><p>I hope that clarifies the subject . More questions feel free.[/QUOTE]</p><p><br /></p>
[QUOTE="BenSi, post: 7439364, member: 95174"]Hi Herberto, They are not necessarily bigger or heavier but the tend to be better made. We use to joke the further from the capital the sloppier the coin. The tetartera minted in Constantinople are always rarer, in fact Grierson thought they were created for ceremonial use only. Michael Hendy, the author of the catalogs that organized the time period disagreed. He was right. Michael Hendy was asked to write the volume IV of the Dumbarton Oakes Catalog of coins, when that was published almost 30 years after his ground breaking work he separated the Metropolitan ( Constantinople ) minted coins from the other tetartera because DM Metcalf had analyzed the coinage and found out that the Metropolitan tetartera had silver added. Michael Hendy repeated the experiments and he too found out they had silver content in them. 2-4% , doesn't not sound like much but a billion trachy had 8%. I believe these Metropolitan coins originally had a silver wash over them. I have seen a few that way and I do own one. I have also seen numerous with traces of silvering still visible. Here is an Alexius Metropolitan Tetarteron SBCV-1923 from my collection. [ATTACH=full]1290841[/ATTACH] To learn more read this post I wrote, it goes through the history of the coin and my observations of collecting them for the past twenty years. [URL='https://www.cointalk.com/threads/disecting-a-denomiation-the-12th-century-byzantine-tetarteron.360937/']Disecting a Denomiation the 12th century Byzantine tetarteron | Coin Talk[/URL] Strange enough, even though it was originally proven in the 1970's none of the collectors catalogs notate a difference in the coin other than it being minted in Constantinople. I hope that clarifies the subject . More questions feel free.[/QUOTE]
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