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<p>[QUOTE=&quot;gsimonel, post: 2854383, member: 82549&quot;]Definitely legit. Someone has recently used electrolysis to clean what was, before treatment, a heavily encrusted coin. Judging by all the pitting, my guess is that the coin was probably unidentifiable--an ugly, corroded blob--before it got zapped. Each of the bits represents an area where the original metal had combined with oxygen and other chemicals in its immediate environment to form a new substance. Electrolysis removes these foreign substances along with the patina, leaving a shiny but pitted coin. So, yes, the bright gold color is more or less the original color of the coin.</p><p><br /></p><p>A lot of people shudder when anyone suggests restoring a coin via electrolysis, but in the case of your coin, someone was able to uncover a nice sestertius that otherwise would have been just an unknown mass of corroded metal. As to whether or not you should get something better, I&#039;d say that depends on your budget.</p><p><br /></p><p>And you coin will repatinate and darken over time, although it may take many years. If you want to keep its shiny, golden color, you&#039;d need to figure out some way to keep oxygen from reacting with the surface metal.[/QUOTE]</p><p><br /></p>

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