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1858 Large Cent - Worth Conserving?

 
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Author Previous TopicReplies: 12 / Views: 700Next Topic  
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United States
104 Posts
 Posted 01/07/2021  8:44 pm Show Profile   Bookmark this topic Add dar76124 to your friends list Get a Link to this Message
I found this in a lot of coins. Is it worth sending to NGC for conservation? Would conservation be successful? Thanks for any feedback.



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 Posted 01/07/2021  9:12 pm  Show Profile   Bookmark this reply Add Coinfrog to your friends list Get a Link to this Reply
A product like Verdi-Care will remove the verdigris, but most likely the color of the underlying surfaces will contrast with the surrounding natural areas.
Edited by Coinfrog
01/08/2021 12:39 pm
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Canada
11 Posts
 Posted 01/07/2021  10:39 pm  Show Profile   Bookmark this reply Add jp8484 to your friends list Get a Link to this Reply
properly conserved you might be able to get US$120 for that coin, not sure what they charge for conservation but from a financial perspective probably not worth it. In my experience that crusty green deposit is usually hard to get off and has eaten into the surface of the coin. Soft green goo comes off easily but your coin looks like it has the crusty kind. love to see the "after" picture if you send it in.
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 Posted 01/07/2021  10:46 pm  Show Profile   Bookmark this reply Add cdngmt to your friends list Get a Link to this Reply
nice details on coin....
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 Posted 01/08/2021  01:12 am  Show Profile   Check TerryT's eBay Listings Bookmark this reply Add TerryT to your friends list Get a Link to this Reply
Soak it in penetrating oil for a couple of days, use a toothbrush, and hope. Can't hurt.
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 Posted 01/08/2021  08:38 am  Show Profile   Bookmark this reply Add okiecoiner to your friends list Get a Link to this Reply
I somewhat echo what Terry, above, suggests, as well as others. Since that hard, crusty green crap on the is very grainy and sharp, it will leave scratches wherever it is pressed into the fields. You need to soak in a penetrating oil first to soften it up. Then, you need to very carefully remove it .. a toothbrush will just grind some of it into the surface. I recommend a careful toothpick or swab. Since the green is actually corrosive, the surface under the green will be discolored or even pitted. Only then can you start to try a few different solutions, including Verdi-Care. ANY 1858 is worth trying to save. If you clean and retone it carefully, you may end up with a nice coin, whatever the resulting flaws. It is not worth having it go to a TPG for restoration. Take another corroded 1859 to practice on .. you'd be surprised what you learn when you do things yourself.
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 Posted 01/08/2021  10:50 am  Show Profile   Bookmark this reply Add 47P7 to your friends list Get a Link to this Reply
DAR
you have a ton of detailed work-experiments ahead of you.
make sure you have a good stationary magnifying glass so you can use both hands and be glad it is wintertime.
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 Posted 01/08/2021  12:09 pm  Show Profile   Bookmark this reply Add dan-in-crystal-lake to your friends list Get a Link to this Reply
I'm in agreement with above comments. You need a good soak in an oil to help soften up the corrosion on the coin. That's the easy part. The hard part comes with trying to remove the corrosion. Patience is the key here, remove what you can and back into the oil. If you are using something sharp to remove the corrosion be careful of the fields. The finished coin will be coloured differently under the corrosion and probably pitted as well as previously mentioned. Slow and easy on this one.
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 Posted 01/08/2021  2:14 pm  Show Profile   Bookmark this reply Add SelectCoinCanada to your friends list Get a Link to this Reply
I don't necessarily agree with all the comments above. It's difficult to determine from a picture but the green looks like the soft goo associated with PVC contamination, it has the consistency of crayon and is easily removed with acetone, VerdiCare or other products. If it's a crusty verdigris and a sign of corrosion than it's a completely different story. It's a nice coin, probably not worth paying to have professionally conserved but a little pricey to start experimenting on. Start with acetone or something that won't harm the coin, oil and toothbrush should be a last resort and reserved for ancients if possible.
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 Posted 01/08/2021  10:14 pm  Show Profile   Check 1960NYGiants's eBay Listings Bookmark this reply Add 1960NYGiants to your friends list Get a Link to this Reply
I would start with a 30 day soak in Extra Virgin Olive Oil (EVOO). Get a baby food jar with lid, fill about 1/4" with EVOO, once a week gently swish the coin, after 30 days the oil will be green/brown. Rinse in warm water. Acetone bath and gently wipe with acetone soaked cotton swab.

Repeat. Repeat. Repeat. Patience is very important. Do not try to pry or scrape off the encrustation.

My experience is the coin will come out slightly darker and the green will be gone.

Please show pictures of the results.
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 Posted 01/17/2021  05:56 am  Show Profile   Bookmark this reply Add Alex A to your friends list Get a Link to this Reply
@dar76124, what did you decide to do? Any results for the 1858 coin in your pic?
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 Posted 01/17/2021  10:45 am  Show Profile   Bookmark this reply Add dar76124 to your friends list Get a Link to this Reply
I have not done anything yet. I'm tempted to try the formula at the link below after experimenting on something cheaper. Anyone have thoughts?

https://www.cointalk.com/threads/ho...ulas.353980/
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 Posted 01/17/2021  12:03 pm  Show Profile   Bookmark this reply Add okiecoiner to your friends list Get a Link to this Reply
If I were you, I would initially try what 1960's Giants suggested above. If you feel unsure, as I said above, just follow the same steps with a nearly worthless corroded 1859.
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