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<p>[QUOTE=&quot;Roerbakmix, post: 5129452, member: 100731&quot;]Two of the (many) aspects of coin collecting I enjoy are sceatta&#039;s, and cleaning encrusted silver coins. Today, I had the joy to combine both aspects:</p><p>[ATTACH=full]1203471[/ATTACH]This is a sceatta from the series R, minted in the East of current England. As can be seen, both the obverse and reverse were encrusted, with what I believed was horn silver (silver chloride; AgCl), and expected the coin to be of good silver. The cleaning procedure was similar to my earlier posts, where I outlined how to remove horn silver without damaging the underlying &#039;true&#039; silver or, in some cases, without damaging the patina.</p><p><br /></p><p>In short: I immersed the coin in a solution a weak solution of boiling water and sodium thiosulphate, and the coin immediately turned black (which is a good sign, as this indicates that there is indeed AgCl present, and reacting with sodium thiosulphate). Then, I gently scrubbed the coin with a soft brush, followed by poking the thickest encrustations with a bamboo skewer. I then repeated this method five or six times, until this:</p><p>[ATTACH=full]1203470[/ATTACH]</p><p>EARLY MEDIEVAL, Anonymous. Denomination: AR Sceatta (Serie R), minted: England; Obv: Abstract head to the right; before: EPA (runic legend), behind three annulets. Rev: Standard with central annulet, cross above. Inside &lt; &gt; /\ Weight: 0.94g; Ø:12mm. Catalogue: . Provenance: ; acq.: 11-2020</p><p><br /></p><p>Some close-ups:</p><p>[ATTACH=full]1203493[/ATTACH] </p><p><br /></p><p>[ATTACH=full]1203494[/ATTACH] </p><p><br /></p><p>[ATTACH=full]1203495[/ATTACH] </p><p>Before cleaning, the coin weighted 0.97g; so it lost 0.03g in the process. Though some small spots of encrustation remain (e.g. in the legend on the obverse, a small patch on the &#039;chin&#039;, and a bit on the reverse, I&#039;m quite happy with how it turned out.[/QUOTE]</p><p><br /></p>

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