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Help removing reddish deposits on ancient silver coin?
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<p>[QUOTE="Silphium Addict, post: 24841920, member: 116882"][USER=119259]@ArtDeco[/USER] - nice half shekel. These were struck at an uncertain southern Italian mint during the Second Punic War. Here is mine:</p><p><br /></p><p>[ATTACH=full]1591366[/ATTACH] </p><p>Carthaginians in Italy </p><p>AR 1/2 shekel </p><p>215-210 BC</p><p>3.53 g, 18 mm, 12h</p><p>O: head Tanit left</p><p>R: horse standing right, sun disk above, Punic “TH” below</p><p>HN Italy 2016; CNP 42a </p><p><br /></p><p>It seems these red deposits are more common on billon coins, but these 1/2 shekels were >90% silver. My understanding is these red deposits are difficult to remove and the surface will be pitted. I have no experience trying to remove them, but here is a previous thread on the topic: <a href="https://www.cointalk.com/threads/whats-the-best-way-of-removing-hard-red-deposits-on-a-silver-coin.386573/" class="internalLink ProxyLink" data-proxy-href="https://www.cointalk.com/threads/whats-the-best-way-of-removing-hard-red-deposits-on-a-silver-coin.386573/">https://www.cointalk.com/threads/whats-the-best-way-of-removing-hard-red-deposits-on-a-silver-coin.386573/</a></p><p><br /></p><p>From the image of the reverse, I personally don't think the deposits are too distracting overall as the major design features are still clear. It looks like it in nice condition and I assume the obverse is OK. My inclination would be to leave it as is, but I would also be interested in what others think.[/QUOTE]</p><p><br /></p>
[QUOTE="Silphium Addict, post: 24841920, member: 116882"][USER=119259]@ArtDeco[/USER] - nice half shekel. These were struck at an uncertain southern Italian mint during the Second Punic War. Here is mine: [ATTACH=full]1591366[/ATTACH] Carthaginians in Italy AR 1/2 shekel 215-210 BC 3.53 g, 18 mm, 12h O: head Tanit left R: horse standing right, sun disk above, Punic “TH” below HN Italy 2016; CNP 42a It seems these red deposits are more common on billon coins, but these 1/2 shekels were >90% silver. My understanding is these red deposits are difficult to remove and the surface will be pitted. I have no experience trying to remove them, but here is a previous thread on the topic: [URL]https://www.cointalk.com/threads/whats-the-best-way-of-removing-hard-red-deposits-on-a-silver-coin.386573/[/URL] From the image of the reverse, I personally don't think the deposits are too distracting overall as the major design features are still clear. It looks like it in nice condition and I assume the obverse is OK. My inclination would be to leave it as is, but I would also be interested in what others think.[/QUOTE]
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Help removing reddish deposits on ancient silver coin?
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