Greek Philip II Macedon

Yeah I need to take care of that coin for sure. I hope it doesn't leave too many pits in it, thats mostly why I havent done anything to it but it will only get worse if I dont.

That will work for the short haul, but the BD will continue to grow. I've tried the cure offered on the link I provided earlier and the coin came out pretty good. The patina stayed intact. I still worry about using chemicals so I try not to if possible.

JW

I have a copper Greek ancient that I was able to improve quite a lot.

The coin had many tiny, but lumpy verdigris blobs on it.

I used a pin to remove the bulk of the verdigris. I did NOT scrape the pin over the blobs. What I did was to apply pressure with the point of the pin to the top of each blob. Tiny bits of each blob just flew off the coin. It is possible to see how the verdigris has pitted the surface of the coin, and that cannot be fixed.

I spent about an hour on the coin; patience and the need to resist the temptation to scrape the verdigris off is esssential. A jeweler's loupe is rquired for this job.

At least, with this method, the patination on the rest of the coin is unaffected. Wiping with olive oil from time to time as required, would help. Prehaps some coins do require maintenance just like machinery does!

It the coin has a green cast all over it, Verdicare would obviously be the best way to help such a coin.

Mind you, some ancient copper coins have a very attractive green patina, and THAT should not be touched.