How to make clean coin uncleaned

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Hi there

I just bought a cleaned coin and i would like to get it graded. But i dont want it to be labeled as cleaned. Is there any way to fix it?
Haha Good one!

Send it to a crappy grading company and cross your fingers?
Please post a picture of the coin that you want to have graded. It would be helpful to determine the severity of the cleaning from pictures. Cleaning is a broad category of damage. You can't really 'unclean' a coin if it has harsh hairlines running across the entire surface, but if it was only dipped a time or two, you could leave it for a number of years and it could retone a little and possibly straight grade.
"If I wanted to destroy the forum I’ve would have already done it in a way all of you would not imagine."
Keep it in your change pocket or change purse for a year.
Yes. Or maybe bury it for a year, in case pocket change does not damage it further.
My collections >
http://mycoinssite.webs.com/apps/photos/album?albumid=13560800
also 13750057 also 15924495 also 15995337
http://mycoinssite.webs.com/apps/photos/album?albumid=16060326
Keep the coin for some weeks in your boots and don't wash feets and socks
That might do it. 0:)
I have tried a number of ideas, wrapped in oily brown paper, under my water heater - more than a year on my roof - UV LED light for days
nothing much does any good.:|
Jamais l'or n'a perdu la plus petite occasion de se montrer stupide. -Balzac
This idea with the boots wasn't a joke. It works.

You can also boil an egg and put the yolk together with your coin under an upturned glass beaker.
Egg yolk and coin shouldn't touch each other
It cannot be Done as it is what it is if its Silver or Gold it worth its Bullion Value though if its a rare coin it will still have some Value but not as High as an Uncleaned Coin. Below are two Examples of Groats one Uncleaned and one Cleaned Professionally.
The Alternative is if you like it is Sell it and buy one that has not been Cleaned.



Ian.
I am glad cleaned are priced lower.
I am happy owner of many beautiful cleaned coins.
Jamais l'or n'a perdu la plus petite occasion de se montrer stupide. -Balzac
I'm far from being an expert on the subject but from what I've seen in many museum collections, the coins are not only cleaned but often protected by some kind of lacquer.
So, instead of rejecting "cleaning" without real discussion, maybe some expert among Numista members should come forward with DOs and DON'T DOs?
I have a few UNC copper coins that have been lacquered 40 years ago and they still look as if minted yesterday! Is that really bad?!
Quote: "Dejan"​​So, instead of rejecting "cleaning" without real discussion, maybe some expert among Numista members should come forward with DOs and DON'T DOs?
https://en.numista.com/numisdoc/cleaning-coins-for-beginners-199.html
My collections >
http://mycoinssite.webs.com/apps/photos/album?albumid=13560800
also 13750057 also 15924495 also 15995337
http://mycoinssite.webs.com/apps/photos/album?albumid=16060326
Quote: "ZacUK"
Quote: "Dejan"​​So, instead of rejecting "cleaning" without real discussion, maybe some expert among Numista members should come forward with DOs and DON'T DOs?
https://en.numista.com/numisdoc/cleaning-coins-for-beginners-199.html
​Very Sound Advice as the interpretation of Cleaning covers a vast field an expert of which has a far grater knowledge than most Collectors.
Nice new year colleagues.

I don't consider myself an expert, I'll just give my opinion: ,, it is not possible,,- The story cannot be reversed.

It seems like a simple and funny question, but it is a vicious circle in our hobby. Great-grandfather collectors of the 19th century applied beeswax and black tar to coins, their grandchildren used varnishes in the middle of the twentieth century, and the great-grandson soaked it in thinner and let it work in an ultrasonic washing machine to remove the wax. Think about how many and how the coins have been cleaned in the collections for centuries.
Next to me in the districts every year there are many coins in piles of these pile two months back -found golden full container, According to the museum's historians, the coins will be cleaned (professionally) and will be exhibited.
Who cleans? How he cleans the coins? what are the procedures after the time intervals of our knowledge?

https://valassky.denik.cz/galerie/poklad-74-zlatych-minci.html?back=3522576920-1434-32&photo=2
https://valassky.denik.cz/zpravy_region/temer-sto-padesat-tisic-ma-dostat-nalezce-zlateho-pokladu-20211006.html

https://www.google.com/search?q=nalezen%C3%A9+mince+na+%C3%BAzem%C3%AD+%C4%8Cech&rlz=1C1NHXL_csCZ927CZ927&sxsrf=AOaemvLcgOr2bOIi3HmCutdOxIU90iyPXA:1641128058612&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiH-9q3jpP1AhVSsKQKHa8pD4MQ_AUoAXoECAEQAw&biw=1093&bih=500&dpr=1.25

Here a colleague showed a beautiful exemplary and expensive coin:
https://en.numista.com/forum/topic115187.html

https://en.numista.com/catalogue/pieces313423.html

A colleague thought I was criticizing it, the opposite is true, it is rare that she hid and was not part of intergenerational collector's alchemy. It should therefore be considered more ( greater value)of the same type of coin.

Here is a sample of my favorite CZK 50 Czech coin from 2018 -coins out of circulation and is beginning to have a purple-blue rainbow:


And here the queen of her crown nothing, no hints and is magnified 3x -gradually:




( Well, I'm applying a thousand-year-old patina to something like that, to his own coin-exonumia and is always described as an imitation however, it is a different topic and an unknown country in which territory I live.
,, as you just edit something you can't take it back,,
Ivan
Swallow it. When it comes out the other end it won't be clean.
Talk to a conservator at a museum. They might be able to tell you how to conserve it rather than clean or unclean it.
There are such things as re-toners on the market, particularly for base metals (i.e copper). Find a dealer in coin chemicals and coin supplies if you're interested. As with anything like this the results are not predicable. Remove all oils from the coin first using acetone, which BTW is a great way to 'restore' coins made of all metal. It removes green slime (PVC) if the coins have been in soft flips for too long.
Moneta
Quote: "Mr. Midnight"​I am glad cleaned are priced lower.
​I am happy owner of many beautiful cleaned coins.
​I agree. Maybe I dont have alot, but I do have plenty. I can get rare,beautiful , low mintage coins , for a fraction of the cost. I have noticed collectors are not as as picky as they were in the past about coins with issues.
Personally, I think uncirculated ,spotless coins are overrated.
Beside my desk I have a "repatination center" which is basically a piece of cardboard where I keep my coins that I want to "unclean":



On the left there is a 1964 British Caribbean 2 cents (crowned Elizabeth II) which takes a long time to get back some patina, but it already looks much better than when I got it. Beside it there are two "bun head" Victoria pennies that regained their patina much more quickly. They look much better than when I got them. The darker one is an 1884 that was basically salmon pink when I got it in a lot.

These four French coins have also greatly improved over the past eight month or so:



The Louis XVI coin was salmon pink; so was the Louis XIII double tournois. The two others were pink mostly on high points. They all looks much better than they did about a year ago now when I got them in a lot. The top two can actually be seen on the right, first row, when I got them:



If you have oily hair, that's how to increase the quantity of natural oils that are the usual cause of patina on metals such as copper/bronze and silver. Such a "repatination" is a natural process (though accelerated) which corrects the unnatural process of using metal cleaners on coins.
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I got out a few of my favorite cleaned coins I got for small price <:D

Jamais l'or n'a perdu la plus petite occasion de se montrer stupide. -Balzac
oops, wrong slides, here are some cleaned slabbed coins bought for BV.
Jamais l'or n'a perdu la plus petite occasion de se montrer stupide. -Balzac
my video about the boiled egg https://www.youtube.com/watch?v=ZDJGu0-oct8 . In Lithuanian with Russian subtitles, but all the pictures well understandable.
Lithuanian coins 1495-1536   www.facebook.com/halfgroats/
My numismatic Youtube channel https://www.youtube.com/channel/UCwEPpYSqc_8AVX6ObayWn6w/videos

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