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<p>[QUOTE=&quot;TIF, post: 3460994, member: 56859&quot;]The timeline of Ptolemy I&#039;s silver coinage weight standards has undergone changes over the last century.&nbsp; Svoronos (1905) thought the heavier Attic standard tetradrachms were made until 305 BCE.&nbsp; Emmons (1954, the paper cited by Nemo) followed the Svoronos dating.&nbsp; Brett and Jenkins had other stratifications and dates.&nbsp; Lorber challenges the previous consensus in <a href="https://www.academia.edu/2181452/C.C._Lorber_A_revised_chronology_for_the_coinage_of_Ptolemy_I_NC_165_2005_pp._45-64" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.academia.edu/2181452/C.C._Lorber_A_revised_chronology_for_the_coinage_of_Ptolemy_I_NC_165_2005_pp._45-64" rel="nofollow">A Revised Chronology for the Coinage of Ptolemy I</a> (2012).&nbsp; I have not thoroughly read any of these papers although I&#039;ve started reading them several times.&nbsp; They are rather difficult to digest in a casual browsing but one of these days when I can really focus I&#039;ll try again. </p><p><br /></p><p>I have the earlier heavier type:</p><p><br /></p><p><img src="https://www.cointalk.com/proxy.php?image=https%3A%2F%2Fstatic.wixstatic.com%2Fmedia%2Fae43f8_4d173c7a9a1647188462acab0530f434%7Emv2.jpg%2Fv1%2Ffill%2Fw_1000%2Ch_625%2Cal_c%2Cq_90%2Fae43f8_4d173c7a9a1647188462acab0530f434%7Emv2.jpg&amp;hash=c36054d532d223c33b1e061359bd00e7" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p><b>EGYPT. Ptolemy I Soter</b></p><p>AR tetradrachm, 27 mm, 17.0 gm (Attic standard)</p><p>Alexandreia mint, struck 313/12 BCE</p><p>Obv: Head of the deified Alexander III to right, wearing mitra of Dionysos and elephant skin headdress, with aegis around his neck, and with horn of Ammon on his forehead</p><p>Rev: ΑΛΕΞΑΝΔΡΟΥ; Athena Alkidemos advancing right, hurling spear with her right hand and with shield over her extended left arm; to right, eagle with closed wings standing on thunderbolt to right with ΔΙ below</p><p>Ref: Svoronos 33; Zervos series D, issue XIII; SNG Copenhagen 14; BMC 7[/QUOTE]</p><p><br /></p>

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