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<p>[QUOTE="Roerbakmix, post: 3715319, member: 100731"]I believe it's horn silver as well. I'm currently in the making of a detailed guide on horn silver, including a section on the recognition and the restoration of it, which I will post on CoinTalk later.</p><p><br /></p><p>You can try to chemically remove horn silver using sodium thiosulphate, which is not harmful to the silver, but will dissolve the horn silver (which is silver chloride or bromide - or a mixture of these).</p><p><br /></p><p>I'll not delve too much in detail now, but your coin looks like good candidate since it's a) a metallike type deposition, and b) clear breaking lines of these depositions can be seen which smooth and solid, unpitted silver below.</p><p>[ATTACH=full]995938[/ATTACH]</p><p><br /></p><p>See for comparison this Menander drachm:</p><p>[ATTACH=full]995937[/ATTACH][/QUOTE]</p><p><br /></p>
[QUOTE="Roerbakmix, post: 3715319, member: 100731"]I believe it's horn silver as well. I'm currently in the making of a detailed guide on horn silver, including a section on the recognition and the restoration of it, which I will post on CoinTalk later. You can try to chemically remove horn silver using sodium thiosulphate, which is not harmful to the silver, but will dissolve the horn silver (which is silver chloride or bromide - or a mixture of these). I'll not delve too much in detail now, but your coin looks like good candidate since it's a) a metallike type deposition, and b) clear breaking lines of these depositions can be seen which smooth and solid, unpitted silver below. [ATTACH=full]995938[/ATTACH] See for comparison this Menander drachm: [ATTACH=full]995937[/ATTACH][/QUOTE]
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