Toning on ANACS graded coins

Hi all,

Is it my imagination, or do coins in ANACS holders tend to tone
gold around the rims?

-- Mike

On 22 Apr 2004 10:45:33 -0700, (Michael Ng) wrote:

Hi all,

Is it my imagination, or do coins in ANACS holders tend to tone
gold around the rims?

-- Mike

Not sure.........OLD SCHOOL NGC holders do this, I have seen this on
Morgan Dollars............

Gary

Gary Loveless wrote:
On 22 Apr 2004 10:45:33 -0700, (Michael Ng) wrote:


Hi all,

Is it my imagination, or do coins in ANACS holders tend to tone
gold around the rims?

-- Mike


Not sure.........OLD SCHOOL NGC holders do this, I have seen this on
Morgan Dollars............

Gary

Hmmmm...I wonder what that will do to all of those beautifully
toned coins in holders over the next 20 years?
Jack

In article tr%hc.16914$GR.2464992@attbi_s01,
Jack wrote:

Hmmmm...I wonder what that will do to all of those beautifully
toned coins in holders over the next 20 years?
Jack

I was wondering taht same thing. I read somewhere that "all toned coins
eventually tone all black." Is that nonsense?

Scot Kamins
--
"A democracy is a sheep and two wolves deciding on what to have for
lunch.Freedom is a well armed sheep contesting the results of the decision."
- Benjamin Franklin

Scot Kamins wrote:
In article tr%hc.16914$GR.2464992@attbi_s01,
Jack wrote:


Hmmmm...I wonder what that will do to all of those beautifully
toned coins in holders over the next 20 years?
Jack


I was wondering taht same thing. I read somewhere that "all toned coins
eventually tone all black." Is that nonsense?

No, it's true, but it doesn't happen overnight, even if you leave
the silver out in the open. Silverware tarnishes, that's why tarnish
removers exist. The process should be a lot slower in a holder.
I don't know how airtight the holders from the slabbers are, but if
they are perfectly airtight, the coin shouldn't change.
The "Toning" is just a thin layer of tarnish. A very thin layer
maybe molecules thick, diffracts light and gives color. A thick layer
is opaque and the coin appears dark.

One of these days I'm going to sacrifice one of my Morgans on
the altar of numismatic science and briefly take a blowtorch to
the edge of one and see if I can duplicate the so-called "bag
toning".
Jack

"Jack" wrote in message
news:dE8ic.10758$aQ6.872293@attbi_s51...
Scot Kamins wrote:
In article tr%hc.16914$GR.2464992@attbi_s01,
Jack wrote:


Hmmmm...I wonder what that will do to all of those beautifully
toned coins in holders over the next 20 years?
Jack


I was wondering taht same thing. I read somewhere that "all toned coins
eventually tone all black." Is that nonsense?

No, it's true, but it doesn't happen overnight, even if you leave
the silver out in the open. Silverware tarnishes, that's why tarnish
removers exist. The process should be a lot slower in a holder.
I don't know how airtight the holders from the slabbers are, but if
they are perfectly airtight, the coin shouldn't change.
The "Toning" is just a thin layer of tarnish. A very thin layer
maybe molecules thick, diffracts light and gives color. A thick layer
is opaque and the coin appears dark.

One of these days I'm going to sacrifice one of my Morgans on
the altar of numismatic science and briefly take a blowtorch to
the edge of one and see if I can duplicate the so-called "bag
toning".
Jack

Hey, Jack, rather than trying an "artificial" toning experiment, why not get
a canvas bag or a piece of canvas and wrap a couple BU Morgan in it. You
can leave instructions to your grandkids to post their observations here in
75-100 years. My grandkids would be enlightened. G

Should those of us who favor toned coins perhaps be storing our MS silver
coins in canvas holders?

Bruce

On Fri, 23 Apr 2004 02:45:45 GMT, Jack
wrote:

Gary Loveless wrote:
On 22 Apr 2004 10:45:33 -0700, (Michael Ng) wrote:


Hi all,

Is it my imagination, or do coins in ANACS holders tend to tone
gold around the rims?

-- Mike


Not sure.........OLD SCHOOL NGC holders do this, I have seen this on
Morgan Dollars............

Gary

Hmmmm...I wonder what that will do to all of those beautifully
toned coins in holders over the next 20 years?
Jack

NGC changed the way they encapsulated the coins, they may claim that
this "probably wont happen". Then again it all depends if you like
toning or not??

Patina = Toning , right?

Gary

Gary Loveless wrote:

Jack
Hmmmm...I wonder what that will do to all of those beautifully
toned coins in holders over the next 20 years?
Jack

NGC changed the way they encapsulated the coins, they may claim that
this "probably wont happen". Then again it all depends if you like
toning or not??

ICG had a test done when they introduced the intercept Shield slabs. The test
subjected Intercept Shield, PCGS and NGC slabs to accelerated aging.

The NGC slabs fared much better than the PCGS slabs in both this test and a
previous test conducted in 1996.

Here's the ICG article on the test:
http://www.icgcoin.com/p001213.htm


++++++++++
Phil DeMayo - always here for my fellow Stooge
When bidding online always sit on your helmet
Just say NO to counterfeits

Phil DeMayo wrote:
Gary Loveless wrote:


Jack
Hmmmm...I wonder what that will do to all of those beautifully
toned coins in holders over the next 20 years?
Jack

NGC changed the way they encapsulated the coins, they may claim that
this "probably wont happen". Then again it all depends if you like
toning or not??


ICG had a test done when they introduced the intercept Shield slabs. The test
subjected Intercept Shield, PCGS and NGC slabs to accelerated aging.

The NGC slabs fared much better than the PCGS slabs in both this test and a
previous test conducted in 1996.

Here's the ICG article on the test:
http://www.icgcoin.com/p001213.htm

That's wonderful, but their "aging" test appears to be to subject
the coin in the holder to some tarnishing gases and see if they
leak through the gasket. It seems to me that this won't tell you
anything about toning caused by diffusion from the plastic holder
itself. I think this may be important because of toning that I've
seen occur just letting coin sit in a plastic cup, and I've heard
of the pvc damage that occurs from some vinyl holders.
Jack

Jack merde44spinks wrote:

That's wonderful, but their "aging" test appears to be to subject
the coin in the holder to some tarnishing gases and see if they
leak through the gasket. It seems to me that this won't tell you
anything about toning caused by diffusion from the plastic holder
itself.

Slabs are made from inert materials.

I think this may be important because of toning that I've
seen occur just letting coin sit in a plastic cup

Was that an open plastic cup? if so, it was noxious things in the air that
toned the coin, most notably hydrogen sulphide.

and I've heard
of the pvc damage that occurs from some vinyl holders.

Contrary to what you may hear from one questionable grading service, slabs do
not contain any PVC (vinyl).



++++++++++
Phil DeMayo - always here for my fellow Stooge
When bidding online always sit on your helmet
Just say NO to counterfeits