Found it at 4 inches. Dated 1900. Tips to clean it up?
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I'm not an expert but I've been reading a lot in copper preservation and cleaning. Using olive oil on a copper coin that is somewhat corroded and porous allows the oil to seep into the coin. Because of this, it would be very difficult to get all the oil out so it will seep back out of the coin for years.Nice find, I love the design of those coins. I soaked mine in olive oil, makes it dark in color, but I was worried about stopping the corrosion and preserving the metal. The patina looks nice, I just don't know if it stops there?
Good for you for making a decision and going for it. I too have a hard time leaving them crusty but would never steer someone into cleaning and be responsible for having them ruin a coin. Especially a first coin! Happy New YearThank you for all of the in-sight. Cleaned it a bit with peroxide and am going to leave it be now. Doesn't look too much different other than a little dirt removed.