How long will so called monster toned coins maintain their vibrancy?
Coinstartled
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Silver coins that are deemed to be NT.
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Coinstartled
Posts: 10,135 ✭✭✭✭✭
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Into the future. There's no end to a rainbow.
``https://ebay.us/m/KxolR5
I guess the pot o gold is fleeting as well.
Toning (tarnish) is a reaction to the atmosphere, heat, humidity, salt air and gets worse over time.
I imagine TPG holders slow down the process substantially but I don't know if anyone really knows.
I would imagine the toning could keep progressing to an eventual unattractive brown. If I had a "monster toner" in an old holder I would definitely send it in for a reholder since the most recent ones are fully sealed. No new oxygen or sulfur, no new tarnish.
Collector, occasional seller
Tarnish will continue to terminal black if the coin remains in an active environment. Slabbed, it will likely become more or less static, depending on the amount and type of impurities on the surface.....Cheers, RickO
.> @ChrisH821 said:
If the appearance of the coin hasn’t changed, I’d leave it as is. Once removed from the current holder, it’s subjected to a different environment, which could produce unpredictable results.
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
This is what products like Intercept Shield were designed for: limiting access to harmful environments (water, foreign gases, etc.)
Frankly, I'd be more concerned about people deciding that Bright White is preferable than about any short term change in color.
JMHO, I have had Brilliant White Silver coins in flips remain that way for a long time, more than a decade. I have owned and seen coins that are in TPG holders that haven't changed over the period of time I have owned them: my assumption is that they looked the same when they were encapsulated. I have toned coins which I have owned for more than a decade and they are stable and unchanged.
the common form of contamination is air-transfer, that is to say that contaminants that tone coins aren't necessarily coming into contact physically with a coin in the form of a liquid, it's gaseous. remove the coin from that environment and lace it in a stable, inert capsule or other storage medium and it has a high probability of remaining stable. it is when a substance gets physically on a coin's surface that it will continue to tone.
I don't prescribe to the belief that just because Silver is very reactive that all Silver coins will eventually turn black. to the OP's question about Monster toned coins, it depends on what the contamination is that's on the coin surface. if it came out of a long stored bag and developed very slowly, there's every reason to believe that removed from the toning environment and stabilized in a capsule that it shouldn't continue to tone.
If the color truly is natural, given proper storage, the color will not change over a long period of time. If the piece is AT, there is a good chance that toning process will continue resulting in a dark, ugly piece.
What Bill said.
Dave
Agree
Toning grows more quickly on silver that has been freshly polished than on silver that has already toned. Thus a layer of tarnish, as unappealing as it might appear, actually helps to protect the silver against further toning. As such, encapsulated "monster toned" coins should remain stable for years.
Check the "View By" and "Sell BY" dates on the back of the slab....
I have coins that have been in my possession, silver, copper, for more than 50 years that have never changed.
The "environment" is the key. I live in the driest state in the nation, Nevada, and in the driest portion of the state, Las Vegas. The only thing that has more crust after 50 plus years, is me.
So, just send to me for your long term storage.....;)
bob
Fellas, leave the tight pants to the ladies. If I can count the coins in your pockets you better use them to call a tailor. Stay thirsty my friends......
Unless coin stored in vacuum toning will progress. Heat, salt air, and humidity also a factor. Are current PCGS holders air tite?
If a coin’s been stored other than in a vacuum and the owner hasn’t detected any changes in its appearance for 50 years, how much does it matter that the “toning will progress”?
Mark Feld* of Heritage Auctions*Unless otherwise noted, my posts here represent my personal opinions.
...this makes sense and is sort of like rust-bluing gun metal...like Arnold Schwarzenegger taking a mud-bath to protect himself from the Predator
Other than Eric Newman...probably not much.