Is it possible to AT a SLABBED coin?

Comments

• robertpr Posts: 6,862 ✭✭✭

  February 28, 2006 11:45PM

  Yes. The newer slabs less so than the older slabs.

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• 291fifth Posts: 24,568 ✭✭✭✭✭

  February 28, 2006 11:47PM

  There was an article on this subject in COIN WORLD several years ago.

  All glory is fleeting.

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• BillJones Posts: 34,637 ✭✭✭✭✭

  March 1, 2006 12:13AM

  If it's the Coin World article I'm thinking about, the author toned Proof sets in their government holders. His point was that the government holders were not a fool-proof storeage device. Sadly some Proof set holders seemed to have promoted toning, which has ruined a fair number of sets and made them scarcer than they otherwise would have normally been in original condition.
  
  Since slabs are not airtight, you can get gases into them that could tone coins. The trouble is the coverage would be uneven and the results could really be ugly.

  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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• supertooth Posts: 274 ✭

  March 1, 2006 12:48AM

  Absolutely possible----In the book 'Coin chemistry---including preservation and cleaning' by Weimar W. White, this process is described in detail. His experiment was done on PCGS, NGC and ANACS slabs. Took from just minutes to a few hours to tone the coins---depending on which holder the coin was in. An excellent book by the way. Bob [supertooth]

  Bob

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• ksteelheader Posts: 11,777 ✭

  March 1, 2006 1:50AM

  There was an informational post here about the subject once, but the post got deleted and the member was bammed!

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• carl Posts: 2,054 ✭

  March 1, 2006 2:02AM

  Never heard of that book called coin chemistry. Where is it available?

  Carl

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• Cladiator Posts: 18,169 ✭✭✭✭✭

  March 1, 2006 2:05AM

  sssshhhh
  
  Don't you people know were not supposed to talk about "the book".
  
  

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• carl Posts: 2,054 ✭

  March 1, 2006 2:11AM

  I won't mention the name again but sure would like info on how to acquire xxxxxxxxxxxxxxxxx. I was a chem major and actually taught a few semisters in college so this book would be worth checking into for accuracy. Going through many text books over the years I've found that there are always someone out there that just makes a book and has little knowledge of what is real. My best example of that was when my wife first got pregnant, she ran out and bought books on having babies. Her doctor pointed out how many were written by men and not even medical men.

  Carl

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• michael Posts: 9,524 ✭✭✭

  March 1, 2006 2:13AM

  Is it possible to AT a SLABBED coin?
  
  
  
  oh my
  
  my my my my my my my my my my my my my my my my my my my my my
  
  
  !!!!!!!!!!!!!!!YES!!!!!!!!!!!!!!!!!!!!!!!!!!

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• LALASD4 Posts: 3,602 ✭✭✭

  March 1, 2006 2:40AM

  Is there a reason why slabs are not air tight?

  Coin Collector, Chicken Owner, Licensed Tax Preparer & Insurance Broker/Agent.
  San Diego, CA
  
  
  

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• Cladiator Posts: 18,169 ✭✭✭✭✭

  March 1, 2006 2:58AM

  
  
  << <i>Is there a reason why slabs are not air tight? >>
  
  Because it's REALLY hard to keep 100% of air out of something.

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• Bear Posts: 18,953 ✭✭✭

  March 1, 2006 7:07AM

  The slabs are not air tight, because if the coins
  
  can't breath they will sufficate and die a horrible
  
  death.

  There once was a place called
  Camelot

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• Myqqy Posts: 9,777 ✭

  March 1, 2006 8:06AM

  There was an informational post here about the subject once, but the post got deleted and the member was bammed!
  
  The member was banned for talking about ATing coins in slabs?

  My style is impetuous, my defense is impregnable !

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• PerryHall Posts: 46,674 ✭✭✭✭✭

  March 1, 2006 9:21AM

  
  
  << <i> There was an informational post here about the subject once, but the post got deleted and the member was bammed!
  
  The member was banned for talking about ATing coins in slabs? >>
  
  
  
  He discussed in detail how to do it and even included pictures of his set up. I guess PCGS didn't want an epidemic of AT coins in their slabs.
  
  
  
  

  Worry is the interest you pay on a debt you may not owe.
  "Paper money eventually returns to its intrinsic value---zero."----Voltaire
  "Everything you say should be true, but not everything true should be said."----Voltaire

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• KoinDawg Posts: 890

  March 1, 2006 11:12AM

  >>coins can't breath they will sufficate and die a horrible death<<
  
  Is that TRUE or are you joking? I've been storing raw coins in those new Air-Tite capsules believing the claim that this was best archival method for coins. Are my coins suffocating ? or will they just never NT

  Scottish Fold Gold

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• oreville Posts: 12,124 ✭✭✭✭✭

  March 1, 2006 12:33PM

  Some of my NGC slabbed silver coins are toning a pinkish color in the older NGC slabs.
  
  Very pretty indeed.
  
  I would not consider them NT. The white plastic piece has something to do with it.
  
  
  
  

  A Collectors Universe poster since 1997!

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• Bear Posts: 18,953 ✭✭✭

  March 1, 2006 12:35PM

  I don't even wanna know. I just hope that
  
  PCGS, NGC and ANACS knew the answer.

  There once was a place called
  Camelot

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• robertpr Posts: 6,862 ✭✭✭

  March 1, 2006 12:36PM

  
  
  << <i>Some of my NGC slabbed silver coins are toning a pinkish color in the older NGC slabs.
  
  Very pretty indeed.
  
  I would not consider them NT. The white plastic piece has something to do with it. >>
  
  
  
  The core is inert. Your coins are toning as a result of either a contaminant within the environment surrounding the slab, or a contaminant which was on the coin's surface at the time it was slabbed.

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• Conder101 Posts: 10,536 ✭

  March 1, 2006 10:00PM

  Since he mentiond that they were in the older NGC slabs, it is probably reacting to outgassing from the paper label. The old NGC slabs are known for this.

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