Toning on coin in blue velvet box

Wow. What a surprise. I dug some coins out of the back of my safe, that I haven't looked at in ages. I was shocked by the toning on this. I believe the toning was caused by the "silk" lining, or whatever material it is, as the reverse, which is in direct contact with the blue, has no toning at all. The box itself is cardboard so it may be the culprit and chemicals bled through the material lining.
The toning is much darker in-hand and quite ugly to me, but it is what it is.
Anyone else experience this type of toning?

 

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I have the same problem with my proof coins in the sets.The obverse was of course facing the front so it took all the reacting material on only that side.But it could also be an enviormental issue to add on.

 

That "silk lining" looks stained. I wonder if the whole thing got wet. I'm a bit surprised the reverse is untouched, but I can believe it -- it would've been somewhat protected, and the obverse might actually have gotten condensation on it. Condensation plus gases from fabric or paper -> bad toning.

 

I have seen this, but honestly I believe it toned due to air exposure and not the blue box. I say this since I have seen the same in all forms of packaging, and the one constant is the one where air didn't tough it was white, and the one with air is toned.

 

slap it in a slab, call it a "MONSTER TONER" and watch the bidiots on eBay file on in.

 

Here's a coin of mine that has similar toning,was in the original packaging although the reverse toned rather than the obverse.

 

It's the photo, as the lining is pristine.

 

Do you store any ammunition in that safe?

 

That is rather dramatic.

 

Not really I used to purposely keep Morgan's with my Primer reloads that made awesome rainbow's?

 

I ruined an MS64 type one SLQ that was in a safe with my firearms. Before I joined CT, I didn’t know any better. That quarter turned black. It was hideous… And I am a blast white guy.

 

A nice natural toning. I like it but toned coins really aren’t my thing. You can always give her a quick tip and a through rinse.

 

No. All ammo is kept in "dry" containers in my underground bunker.

 

Hum. Has me wondering what would happen if I carried a silver coin in my rear pocket for a few days. LOL

 

Does your new outfit have a rear pocket?

 

The moisture from your bottom would certainly do the trick Mountain Man, A little humor, very little...

 

I'll do a search, but for now - enlighten me. Thanks!

 

The cleaning chemicals used for firearms are designed to break down copper. When you close up cleaned firearms with coins, the out gassing from the cleaning chemicals attacks the copper in our coins.