Slab Toning -- Old NGC slabs -- ?
FrattLaw
Posts: 3,290 ✭✭
Has anyone had this experience. I've heard of this happening but now it's been confirmed by a seller. I was looking to purchase a 25 Peace and I questioned the seller as to the color of the toning, since it was tough to make out from the scans. It had nice golden, russet toning with some orange highlights. He then went on to say, he's had the coin for the past 15-17 years and it has toned IN THE SLAB. When he bought it, it was blast white. I doubt he is lying, he wants to sell his coin, why would he make this up?
Does anyone else have coins in older NGC holders that have toned while slabbed? I've heard of this and it was explained to me that the coin was interacting with the paper label since there was no gasket.
Okay -- final question -- natural or AT, is this the modern version of album toning, are we going to have slab toning? I gotta start buying up all those older NGC slabs.
Michael
Does anyone else have coins in older NGC holders that have toned while slabbed? I've heard of this and it was explained to me that the coin was interacting with the paper label since there was no gasket.
Okay -- final question -- natural or AT, is this the modern version of album toning, are we going to have slab toning? I gotta start buying up all those older NGC slabs.
Michael
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Comments
peacockcoins
Frank
One reason this can occur is if a coin has been dipped and improperly rinsed.
Another is, that once a coin has been exposed to the elements and a chemical reaction begins, placing it inside an NGC or PCGS holder does not always prevent a continued reaction.
I had several of mine change slightly, all old NGC holders. As explained to me by GSA Guy, it is caused by the paper insert in the holder. I gave NGC seven of them to reholder at FUN and have them back already.
They charged $4 each.
Regards,
Tim
Use a Volatile Corrosion Inhibitor (VCI) if it worries you. I really don't know long time results, but it's gotta be better than nothing.