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Share my fun: describing and cleaning a small roman hoard
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<p>[QUOTE="Roerbakmix, post: 4955214, member: 100731"]Exactly the type of response I hoped for. </p><p><br /></p><p><br /></p><p>I asked the owner this. He found the 15 coins in the same context, closely together (southern part of the Netherlands), but not in the same deposit. It's probably a dispersed hoard. </p><p><br /></p><p>.</p><p>A relatable coin. I mainly clean silver coins, and this is a fun project. Coins with a high silver purity are often relatively easy to clean. These antoniani are more difficult given that a) the silver content is low, b) the deposits are though and c) there is a nice patina, so there's something to loose. </p><p><br /></p><p>This project is interesting for me as it gives me the possibility to try different cleaning techniques. </p><p><br /></p><p>That having said, here are the first two. I used hydrogen peroxide (h2o2) 35%. Use this with caution, as it will cause instant burns. </p><p>[ATTACH=full]1191011[/ATTACH] </p><p>I think this one turned out rather nice. There are still some iron oxide deposits on the reverse, and a thin layer of horn silver on the obverse, but in hand, these deposits are almost unvisible. </p><p><br /></p><p>[ATTACH=full]1191012[/ATTACH] </p><p>This one turned out to be a bit more pitted. I was afraid this would happen (see for example the roughness of the legend at the obverse between 9-1 o'clock), however, the H2O2 wasn't very gentle with the coin either.[/QUOTE]</p><p><br /></p>
[QUOTE="Roerbakmix, post: 4955214, member: 100731"]Exactly the type of response I hoped for. I asked the owner this. He found the 15 coins in the same context, closely together (southern part of the Netherlands), but not in the same deposit. It's probably a dispersed hoard. . A relatable coin. I mainly clean silver coins, and this is a fun project. Coins with a high silver purity are often relatively easy to clean. These antoniani are more difficult given that a) the silver content is low, b) the deposits are though and c) there is a nice patina, so there's something to loose. This project is interesting for me as it gives me the possibility to try different cleaning techniques. That having said, here are the first two. I used hydrogen peroxide (h2o2) 35%. Use this with caution, as it will cause instant burns. [ATTACH=full]1191011[/ATTACH] I think this one turned out rather nice. There are still some iron oxide deposits on the reverse, and a thin layer of horn silver on the obverse, but in hand, these deposits are almost unvisible. [ATTACH=full]1191012[/ATTACH] This one turned out to be a bit more pitted. I was afraid this would happen (see for example the roughness of the legend at the obverse between 9-1 o'clock), however, the H2O2 wasn't very gentle with the coin either.[/QUOTE]
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Share my fun: describing and cleaning a small roman hoard
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