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I Have To Clean In Order To Recall Date

 
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Author Previous TopicReplies: 5 / Views: 413Next Topic  
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4760 Posts
 Posted 06/12/2021  11:00 pm Show Profile   Bookmark this topic Add macmercury to your friends list Get a Link to this Message
The coin came in the batch of coins I purchased recently, just a few of copper cents has verdigris and rust, some worst than other, but this 1871 Indian cent is probably hopeless, before the cleaning, it was covered completely in verdigris, so I decided to do test on it.
I know don't clean, but in this case I can barley make out that it was a Indian cent, and only see the last digit under magnification.
The solution is white vinegar and 50% tap water mixed, after soaking for about 20 minutes, I used an soft bristle brush to brush the entire surface off of contaminate, decided not to soak any longer, those verdigris are pretty much etched into the copper, rinse with tap water, and dipped into acetone for 15 seconds. Pad dry with paper towel, and air dry.

*** Moved by Staff to a more appropriate forum. ***



Good thing it wasn't a 1877 Indian cent? Sigh!

The Mercury Dimes Specialist!
Current project: US Dansco 7070 Album
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United States
40121 Posts
 Posted 06/13/2021  04:31 am  Show Profile   Bookmark this reply Add John1 to your friends list Get a Link to this Reply
I think you should have started with the least damaging method first and work your way up. Vinegar is a no-no. I forget who,but a member posted a polarity chart on cleaning methods that should be used if and only if you need to clean coins..
John1
( I'm no pro, it's just my humble opinion )
Searched 6.5 +/- Million Cents Since 1971
Edited by John1
06/13/2021 04:32 am
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Australia
18736 Posts
 Posted 06/13/2021  06:22 am  Show Profile   Bookmark this reply Add sel_69l to your friends list Get a Link to this Reply
Cleaning method OK to reveal the date, but
not good enough to passivate the bronze disease.

Search Google to learn a variation on the method on how to passivate bronze disease (verdigris), that suits the needs of this coin. Until BD is brought under control, keep this coin isolated from the rest of your collection.

Note : From appearance in the pics, BD has already caused pitting. Nevertheless, still worth doing if for only learning how to passivate BD. which may come in helpful in saving some other coin in the future.
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 Posted 06/13/2021  08:33 am  Show Profile   Bookmark this reply Add T-BOP to your friends list Get a Link to this Reply
I wish you would have posted a photo of that coin before you started to clean it so we can see the difference in what you did . But if you couldn't tell much of anything before , I think the cleaned coin looks pretty darn good . The coin is a goner but at least now you can use it as a hole filler . Good job with experimenting .

In Memory of Butch L.
and Jim U. rest in peace .
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 Posted 06/13/2021  09:08 am  Show Profile   Bookmark this reply Add Coinfrog to your friends list Get a Link to this Reply
And a semi-keys date to boot!
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 Posted 06/13/2021  11:18 am  Show Profile   Bookmark this reply Add macmercury to your friends list Get a Link to this Reply
I should have taken pictures, but the only thing I know is a Indian cent with thick layer of verdigris. And from the start I know the BD has dug into the coin already, so just trying to see the rest of the date, stopped as soon as I see the complete date, but not good enough to get the rest of it out.

I'd like to get a hold on Veri-Care, but I see this product is out of stock?

The Mercury Dimes Specialist!
Current project: US Dansco 7070 Album
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