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Help Me Preserve This Bronze Coin | 1423 Joseon Tongbo
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<p>[QUOTE="Ryro, post: 7529965, member: 91461"]Hey hey! Great coin of a historicaly significant figure!</p><p>I don't think it is BD. I would just leave it out for six months, keeping an eye on it. If a light green flakiness appears that scrapes off under your finger nail when you lightly scratch it, then yes. Put it in distilled water for a couple weeks, taking it out every few days to brush with an old cut down tooth brush. And then to get rid of any moisture (it's moisture in the coin that creates the BD) bake it at 350 for 45 minutes.</p><p>But I really don't think that's needed. These coin types often build up a lovely green patina. No BD here. Just some great patination:</p><p>[ATTACH=full]1300085[/ATTACH]</p><p>Again, congrats on the new coin. I'm hoping you'll get the bug and start posting and collecting more![/QUOTE]</p><p><br /></p>
[QUOTE="Ryro, post: 7529965, member: 91461"]Hey hey! Great coin of a historicaly significant figure! I don't think it is BD. I would just leave it out for six months, keeping an eye on it. If a light green flakiness appears that scrapes off under your finger nail when you lightly scratch it, then yes. Put it in distilled water for a couple weeks, taking it out every few days to brush with an old cut down tooth brush. And then to get rid of any moisture (it's moisture in the coin that creates the BD) bake it at 350 for 45 minutes. But I really don't think that's needed. These coin types often build up a lovely green patina. No BD here. Just some great patination: [ATTACH=full]1300085[/ATTACH] Again, congrats on the new coin. I'm hoping you'll get the bug and start posting and collecting more![/QUOTE]
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Help Me Preserve This Bronze Coin | 1423 Joseon Tongbo
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