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Old 08-30-2019, 04:56 PM
Mikey48's Avatar
Mikey48 Mikey48 is offline
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Location: Michigan
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Default Cleaning large cent with verdigris

Found my first large cent last tuesday and was very excited. I brought it home and put it in water to soak for a few hours and then used a toothpick to clean the surface to see what was under the mud. When the mud was first removed it was pretty bright, but it has darkened a lot and is harder to see the detail even though the coin has very little wear. I'm leery of using coin cleaners or even peroxide. It seems like the verdigris should be removed or at least neutralized, but I have no experience with cleaning up old copper.
Photos of the coin are attached. Advice is welcomed.

First two photos on blue countertop are of the coin dry right after initial cleaning. The second two are today, three days later after exposure to air.
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Old 08-30-2019, 05:48 PM
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amc rulz amc rulz is online now
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Stop right there!

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Old 08-30-2019, 06:19 PM
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ToySoldier ToySoldier is offline
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Originally Posted by amc rulz View post
Stop right there!
Agreed, the coin looks great.

2020: 9 silver; 89 wheats; 1 1836 large cent; 2 Indian Head Cent; 8 buffalo nickels; 3 Liberty nickels; 4 tokens; 3 silver other; $35.79
2019: 45 silver ; 271 wheats; 15 Indian Head Cents; 18 buffalo nickels; 6 Liberty nickels; 6 tokens;6 silver other; 1 gold ring; $104.60
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Old 08-30-2019, 09:03 PM
RichieSoprano RichieSoprano is offline
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Yep. MUCH better than mine turned out. However, I found something that cleans old copper really well by accident. I am going to put up a post on it.

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Old 09-02-2019, 10:42 PM
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AirmetTango AirmetTango is offline
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Location: NW Ohio
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I agree with everyone so far...stop right there! Itís very easy to go too far with old copper!

Hereís one of the best videos Iíve seen to demonstrate the effects of various cleaning techniques on old copper coins:


Oldest coin: 1834 Matron Head Large Cent (Honorable Mention: 1857 Flying Eagle Cent)
Oldest silver: 1854 Seated Liberty Quarter
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