2011 ASE 25th anniversary set starting to tone

I am mostly a gold collector, so do not know much about silver coins toning. I bought about 15 of the 25th anniversary ASE sets from the mint in 2011. I sold all but the best 3 sets. I just took them out of storage tonight and noticed the reverse proof is starting to tone in two sets, and the proof in one. I know some people pay more money for a nicely toned coin.. but how do I know if the toning is helping or hurting the value? I do not know if I should be happy, or try to figure out a way to make it stop. It is just starting around the edges, and is almost a purple tone. And they are just stored in a climate controlled area, but nothing special to keep oxygen, etc out.

 

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Without seeing a pic of the toning it's hard to say. Once it's started toning you can't really stop it. Any desiccant to absorb extra moisture in the air? What are they stored in? If it's a cardboard box, for example, it could be giving off gases that is causing the toning.

 

They are stored in the original mint wood boxes, with the little packets to absorb moisture (probably expired by now), and those boxes are in the original cardboard shipping box.

 

That cardboard box could be the cause of the toning. I never keep that shipping box. I always take my coins out. I would suggest if you have any of your coins, in the shipping box, to take them out and throw away the shipping box.

 

Mint OGP does cause toning. I take my coins out of the packaging, leave them in the capsules, and put them in zip lock food bags. Haven’t seen any toning on the coins – some stored this way for 30 years.

 

The rarest coins in your sets are starting to tone purple? Congratulations! I'd leave them as-is and hope for some color progression. You might have to give up hope on them being 70's due to improper storage (arguable, but how many 70 toners do you see?) which is very painful, but color is good too!
I finally had my best 25th Ann. set slabbed this year and was a little disappointed, but the rare ones came back as 70's.

 

The wood boxes may also be responsible for the toning. Wood has a tendency to emit gases that can affect coins.

Chris

 

I like statequarters answer. I do the same. The coins in the capsules are in Tupperware with dessicant in the SDB. All the pagaging is in a box in the closet.
To those that say let them tone, be careful of what you wish for. The toning you get might not be the attractive kind.

 

A very legitimate concern! But given the number of toned Reverse Proof Eagles available, it might still be worth the gamble when the time comes to sell. So long as the reaction has already begun.

 

Mine too the capsule was defective. Had to take it out carefully and put it in an AirTite capsule.

 

How much have your toned so far, and what do they look like? Mine are just BARELY starting to turn.

 

Maybe mine will end up looking like this in a few years... What can make a coin naturally tone so fast? Is there any way to speed it up without it becoming AT?

 

@jwitten Have you checked on your silver eagles lately? Mine continues to tone even though it is in a low humidity environment, in an airtite, sealed in a ziploc bag.

 

Nope, not lately. Let me see if I can go find them....

 

I pulled my sets out to check for some toning........................

 

2012 S proof is starting to tone too but all others are fine.

 

I have 3 sets left. I cherrypicked the nicest coins out of all the sets I had, so these are all pretty nice. 2 sets are showing slight blue toning to the reverse proof. This shows the heaviest (2 pics of the same coin) One set show some toning to the proof. The rest of the coins are untoned.

 

Still got your tree up, huh? lol