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Cleaning Of Coins?

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Pillar of the Community
ageka's Avatar
Belgium
2078 Posts
 Posted 08/17/2006  1:49 pm  Show Profile   Bookmark this reply Add ageka to your friends list Get a Link to this Reply
Today on a german forum they got a goldsmith who just explained how to clean black silver

1) gasbunsenburner heat untill slightly red
2) Throw in water
3) Put gently in 15% sulphuric acid
4) Use a soft messing brush on a drill to polish
5) Put in soap to neutralise the acid
6) Wash in water and ready

Shiny as new lol

And the question was how to clean a new american silver eagle with fingerprints on it
Pillar of the Community
United States
891 Posts
 Posted 08/17/2006  2:17 pm  Show Profile   Bookmark this reply Add Southern Yankee to your friends list Get a Link to this Reply
Well that should do it ageka. That's nuts.
Pillar of the Community
ageka's Avatar
Belgium
2078 Posts
 Posted 08/17/2006  2:38 pm  Show Profile   Bookmark this reply Add ageka to your friends list Get a Link to this Reply
quote:
Originally posted by Southern Yankee

Well that should do it ageka. That's nuts.



I know but I am not going to insult a jeweller by telling him he is ruining his coins
My wife likes her polished 100 year old sovereign just fine
One in a beagel on a chain around her neck and one dangling from a armband although my jeweller uses ultrasonic with acids and then wood chips to dry and polish
New Member
United States
37 Posts
 Posted 08/17/2006  11:29 pm  Show Profile   Bookmark this reply Add lou b to your friends list Get a Link to this Reply
In the past 2 years I've sent about a hundred coins to Anacs. All type coins and most Unc 60 or better. I do not like toned coins so I sent a couple test coins to them that I had quickly dipped. They came back without detection. I ended up sending all my slightly toned coins after dipping them and not one came back as cleaned, and some of them are quite valuable. Obviously I concluded they do not know the difference. Heavily toned coins ( I like to call them rusty ) will show missing detail if dipped because it will take off the oxidized portion of the coin's details. These will probably be graded as cleaned. Otherwise I would never clean coins of any kind.
Pillar of the Community
ageka's Avatar
Belgium
2078 Posts
 Posted 08/19/2006  12:52 pm  Show Profile   Bookmark this reply Add ageka to your friends list Get a Link to this Reply
There is a series of 5$ coins for sale all proofs
All have nice to very nice fingerprints on them
Since the US mint used 900 gold I think the coins are ruined
because the 10% copper is probably etched forever
I got prints off old Napoleons but these proofs look goners
Any ideas ? Probably going cheap


http://cgi.ebay.de/USA-5-Dollar-199...re_W0QQitemZ170020562679QQihZ007QQcategoryZ42726QQssPageNameZWDVWQQrdZ1QQcmdZViewItem


http://cgi.ebay.de/USA-5-Dollar-199...eg_W0QQitemZ170020562784QQihZ007QQcategoryZ42726QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Pillar of the Community
United States
1203 Posts
 Posted 08/19/2006  1:32 pm  Show Profile   Bookmark this reply Add OldDan to your friends list Get a Link to this Reply
As you can tell by reading, there are any number of ideas and suggestions reguarding the cleaning of coins. Most of the suggestions have very valid points and tips that if followed can do you no harm. In the long run you will adopt similar tactics to either change of safeguard your collection, and these practices will be just as valid as nyone elses methods.
Use good common sense and go slow. Practice, Practice, Practice!
Pillar of the Community
ageka's Avatar
Belgium
2078 Posts
 Posted 08/19/2006  1:47 pm  Show Profile   Bookmark this reply Add ageka to your friends list Get a Link to this Reply
quote:
Originally posted by OldDan

As you can tell by reading, there are any number of ideas and suggestions reguarding the cleaning of coins. Most of the suggestions have very valid points and tips that if followed can do you no harm. In the long run you will adopt similar tactics to either change of safeguard your collection, and these practices will be just as valid as nyone elses methods.
Use good common sense and go slow. Practice, Practice, Practice!



I am not going to buy a proof gold to practice dipping am I
Anyway I never dipped a coin , I only got two dozen solvents
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