Do Slabs Protect? - Coin Community Forum

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Author	Replies: 2 / Views: 952
Podoprigora Pillar of the Community United States 588 Posts	Posted 01/31/2009 9:47 pm If a coin is toned it's not a Perfect BU any more. So lets say for example there is a coin that is graded MS70. And it's stored for some time, will it ever get a toning. And if yes will it still be that exact grade? thank you Report this Post to the Staff

SsuperDdave Moderator United States 23522 Posts	Posted 02/01/2009 08:08 am Major TPG slabs are not air-tight, and will not stop the coin from toning if it is stored in an atmosphere conducive to toning. Toning will not affect grade (with the possible exception of 70's - I just don't know), and the TPG's offer a guarantee regarding the grade. If you resubmit a slabbed coin, and they lower the grade they initially assigned the coin, they will make you whole for the reduced value. Of course, there's a lot of wiggle room in that statement, but instances of "making it good" have happened. Report this Post to the Staff
just carl Bedrock of the Community United States 20753 Posts	Posted 02/03/2009 1:17 pm As to the grade it would depend on the amount of toning. Remember that toning is chemical reaction of the metal on a coin with an outside substance. If the toning continues sufficiently over time it becomes corrosion and possibly ruin the coin completely. Report this Post to the Staff
	Replies: 2 / Views: 952

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