When a coin is restored, conserved, dipped etc. - - -

Comments

• BAJJERFAN Posts: 31,615 ✭✭✭✭✭

  June 17, 2014 2:19AM

  I would imagine that more than a few coins have been dipped, stripped, Q-tipped and flipped.

  theknowitalltroll;

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• BillJones Posts: 35,779 ✭✭✭✭✭

  June 17, 2014 2:37AM

  Many, many years ago (early 1960s) Brown and Dunn, who wrote one of the early books on U.S. coin grading, recommended removing tarnish by dipping a cotton ball into the dipping solution and using that instead of immersing the coin into the solution. I could see where that method could cause hairlines if you were not careful. I don't think that anyone would recommend doing that now.

  Retired dealer and avid collector of U.S. type coins, 19th century presidential campaign medalets and selected medals. In recent years I have been working on a set of British coins - at least one coin from each king or queen who issued pieces that are collectible. I am also collecting at least one coin for each Roman emperor from Julius Caesar to ... ?

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• Ajjohnson77 Posts: 481

  June 17, 2014 2:41AM

  I have had to use a qtip soaked in acetone to rub off green PVC residue before. Some times pressure needs applied to a messy spot. Qtips don't leave hairlines if used gently.

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• Steve27 Posts: 13,277 ✭✭✭

  June 17, 2014 2:45AM

  The only way to remove carbon or milk spots is with a drill.

  "It's far easier to fight for principles, than to live up to them." Adlai Stevenson

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• cmerlo1 Posts: 8,034 ✭✭✭✭✭

  June 17, 2014 2:59AM

  I NEVER wipe a coin with anything, EVER. If I'm dipping, I rinse with distilled water and blot the coin dry. I follow the same process with acetone- no need to wipe it if you soak the coin long enough.
  
  My logic is this: While a q-tip or cotton ball itself won't scratch the coin, there could be grime on the coin's surface remaining after the dip/acetone bath that can when moved across the coin by the q-tip or cotton ball.

  You Suck! Awarded 6/2008- 1901-O Micro O Morgan, 8/2008- 1878 VAM-123 Morgan, 9/2022 1888-O VAM-1B3 H8 Morgan | Senior Regional Representative- ANACS Coin Grading. Posted opinions on coins are my own, and are not an official ANACS opinion.

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• 19Lyds Posts: 26,503 ✭✭✭✭

  June 17, 2014 4:08AM

  
  
  << <i>I NEVER wipe a coin with anything, EVER. If I'm dipping, I rinse with distilled water and blot the coin dry. I follow the same process with acetone- no need to wipe it if you soak the coin long enough.
  
  My logic is this: While a q-tip or cotton ball itself won't scratch the coin, there could be grime on the coin's surface remaining after the dip/acetone bath that can when moved across the coin by the q-tip or cotton ball. >>
  
  Excellent point regarding the residual grime.

  I decided to change calling the bathroom the John and renamed it the Jim. I feel so much better saying I went to the Jim this morning.
  
  
  
  The name is LEE!

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• Lakesammman Posts: 17,660 ✭✭✭✭✭

  June 17, 2014 4:26AM

  I would imagine that more than a few coins have been dipped, stripped, Q-tipped and flipped.
  
  There are lots of coins that have had spots scraped away rather crudely and they still end up in TPG holders.

  "My friends who see my collection sometimes ask what something costs. I tell them and they are in awe at my stupidity." (Baccaruda, 12/03).I find it hard to believe that he (Trump) rushed to some hotel to meet girls of loose morals, although ours are undoubtedly the best in the world. (Putin 1/17) Gone but not forgotten. IGWT, Speedy, Bear, BigE, HokieFore, John Burns, Russ, TahoeDale, Dahlonega, Astrorat, Stewart Blay, Oldhoopster, Broadstruck, Ricko, Big Moose, Cardinal.

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• TPRC Posts: 3,817 ✭✭✭✭✭

  June 17, 2014 4:36AM

  The old timer copper guys taught me to use a rose thorn to lift detritus off coins. I have to say that it is amazing how well it works. I have never scratched or marked a coin using a rose thorn and I have used it on more than a few coins. Now it only works for big stuff, like dirt or verdigris, or food, but it does work.

  Tom

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• crypto79 Posts: 8,623 ✭

  June 17, 2014 6:36AM

  While there is a difference between cir and UNC coins but I use q-tips all the time in conjunction with acetone and never had one not grade.

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• Shamika Posts: 18,785 ✭✭✭✭

  June 17, 2014 8:06AM

  
  
  << <i>The old timer copper guys taught me to use a rose thorn to lift detritus off coins. I have to say that it is amazing how well it works. I have never scratched or marked a coin using a rose thorn and I have used it on more than a few coins. Now it only works for big stuff, like dirt or verdigris, or food, but it does work. >>
  
  
  
  I've heard of this before.
  
  
  

  Buyer and seller of vintage coin boards!

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• mozin Posts: 8,755 ✭✭✭

  June 17, 2014 3:03PM

  What is the results when PCGS restores a gold coin that has no green PVC spots, but only has a PVC haze?

  I collect Capped Bust series by variety in PCGS AU/MS grades.

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• TwoSides2aCoin Posts: 45,010 ✭✭✭✭✭

  June 17, 2014 3:18PM

  
  
  << <i>Is any contact made with the coin itself (other than the liquid, of course) ? Is anything (such as a q-tip) used directly to remove carbon, water spots or anything else adhering to the surface of the coin? >>
  
  
  
  Absolutely !
  
  
  Eye contact is essential &
  anything is used to do whatever needs to be done for such to BE DONE.
  
  And those are the operative words in "altering the coin's surfaces", despite the means.
  
  Continuum is the key. How long will this continue ?

  ``https://ebay.us/m/KxolR5

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• ricko Posts: 98,724 ✭✭✭✭✭

  June 17, 2014 11:56PM

  Rose thorns are a very useful tool in removing stubborn deposits... I have used them and never scratched the surface of a coin... Cheers, RickO

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