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<p>[QUOTE=&quot;Roerbakmix, post: 8397143, member: 100731&quot;]In addition, I actually used this knowledge to improve this coin:</p><p>[ATTACH=full]1489959[/ATTACH]</p><p>A series N type 41b sceatta, which was heavily overcleaned. Note the scratches on both the obverse and reverse, and shiny, polished higher points. Also note that a small remainder of the deposits is still present (e.g. obv between 7-9 o clock; small black spots between the figures). </p><p><br /></p><p>[ATTACH=full]1489958[/ATTACH]</p><p>Immersing the coin in sodium thiosulphate dissolved most silver chlorides. The Na3AgS2O32 then filled the micro-scatches, which are now only visible by magnification (this coin is 11 mm) and not by the naked eye.[/QUOTE]</p><p><br /></p>

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