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<p>[QUOTE=&quot;philologus_1, post: 26079441, member: 92212&quot;]Big CONGRATS [USER=134416]@nerosmyfavorite68[/USER]!&nbsp; That&#039;s a leap of an upgrade! :-D</p><p><br /></p><p><br /></p><p>I think under Isaac II the gold content of a hyperpyron was still 20.5K which was 0.854 fineness.&nbsp; It didn&#039;t begin to dip until the early 13th century when it became 18K.</p><p><br /></p><p>From Isaac II the only coin I have is a mere, humble, bronze tetarteron (with a worn, flat-faced archangel). </p><p><img src="https://www.cointalk.com/attachments/upload_2023-1-9_21-42-44-png.1532714/" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></p><p>Isaac II Angelus, 1185-1195 AD, AE Tetarteron.</p><p>Thessalonica mint.</p><p>Obv.: Bust of archangel Michael, facing, nimbate, holding jeweled scepter and globus-cruciger; O X AP-X MI (or similar).</p><p>Rev.: Bust of Isaac, crowned, bearded, wearing loros, holding cruciform scepter and akakia; ICA AKI OC ΔE CΠO TH C (or similar).</p><p>Weight: 4.0 gr. Diam. 23 mm. (Oblong flan.)</p><p>Attrib.: Sear 2005[/QUOTE]</p><p><br /></p>

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