Do coins continue to tone

Do coins continue to tone when they are in pcgs or ngc holders?

 

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I don't see why not considering no TPG slab is airtight.

 

Yes

 

I don't know, I think once they start toning they will continue if they are kept in the same environment that started the toning in the first place. If it's moved out then maybe it'll stop. Tough call. I just bought this ASE terrible pic, the coin and the case look brand new in hand. Great looking coin but I think I'll take it out of the plastic case. Not to hijack your thread but what would you do?

 

They can, but they don't have to.

 

what do you mean?

 

There was once a person who got busted for intentionally toning coins (Mainly Morgans) while still inside the TPG holders. Guy was good, but got caught cheating the system.

 

The slabs are not airtight, which means that if they are stored in an environment that would promote toning that the coins can start, or continue, to tone. Also, if something is on the surface of a coin that might accelerate the toning process and it is still on the coin when it is slabbed then the coin may tone faster than it otherwise would. However, if coins are in slabs and kept away from an environment that encourages toning then they should either not tone at all or should continue to tone very slowly.

 

There is a number of environmental factors that cause coins to tone. Adding or removing these factors can cause them to tone fast, or slowly. A fast tone is ugly. A coin takes a long time to tone nicely, it's a "fine wine" type of thing.

Coins will continue to tone once toned, but depending on how you store them is crucial.

 

would a safe be okay to store them in, or would that be like a hot box with no circulation.

 

"You can't stop toning, you can only slow it down"
One of my favorite quotes from Doug

 

So how did he do that, do you know?

 

It is pretty easy to do with rattler holders, which is what he appeared to primarily use. The rattler holders have a poor side seal and this allows significant gas transfer to occur. Simply introduce the right compound into a controlled environment and allow gas difusion to do the rest.

 

MY Dansco album coins are definitely still toning. I have had slab coins tone over a period of a few years, as they are far from airtight.

 

was there a thread where the guy was caught and confronted?

 

I don't know his methods, and even if I did, I wouldn't share or practice.

Not here on cointalk and I don't wanna dig through the Collectors Universe forum finding it.

 

Do coins continue to tone?

Sí, they just do it more slowly in slabs so take care on how ya store dem puppies. You should be OK as long as ya don’t bury them out under the oak tree in the back yard.....

 

There were several threads that blew up on the PCGS boards when this happened since the person doing the toning was a long time PCGS board member. At least a few of those threads were later pulled by the PCGS moderators as they had deteriorated significantly. My best guess would be that they blew up in 2007 or thereabouts.

 

I am curious, what is the environmental condition that causes silver coins to tone? I know the answer but am not convinced that you know. Furthermore, if "fast tone" as you put it is always ugly, the debate about NT & AT would not exist. There are coins that are toned in minutes that are beautiful and there are coins that took decades to tone that are hideously ugly.

Prior levels of toning don't promote further toning. If you remove a coin from the toning source, the toning process will stop.

 

What he doesn't tell you is that you don't need to stop it. In many cases, it is so slow that you can't see the toning even after decades. How many bright white Morgan Dollars have come from unopened mint bags that spent many decades in bank vaults.