A question about graded coins

Buy some vacuum seal bags, and seal up your graded coins in there if you are concerned about moisture infiltrating the holder.

 

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Oh, and, by the way, as I have asked around 187 times before, stop referring to yourself as "Meow".

 

Hmmmmm, but Meow is Meow.

 

Slabs are not airtight. They do protect the coin significantly, but are not perfectly airtight. Technically, no storage method of coins is airtight either.

 

You're right. Even vacuum seal bags can have a small amount of air seep in.

 

I don't think so. It sucks the air. I have coins that is in a Food Saver bag for more than 30 years and it has never toned. Not so true

 

https://www.cointalk.com/attachments/15305911011011559630091-jpg.794788/

Here is my British Virgin Island coins and I have never opened them for 30 years.

 

Doesn't mean air never got in

 

I agree with baseball, Just because a coin is not toned doesn't necessarily mean it is stored in a 100% airtight environment. I am quite sure that a very small amount of air can creep into just about any common coin storage method.

 

Im sure you're 100% wrong. Im also sure that you dont own and have never used a food saver bag.

 

would not the bag lose its tight fit around items, if air is getting back in? That might be a good indicator of a failed seal.

 

Oh yea, can we be sure that the bag material is inert enough not to hurt the coins too?

 

I have used them for more than 30 years.

 

Think maybe Meow will empty out the large pelican case with emergency food, and put the coins in there. It seems to have a pretty good seal.

 

Pelican are good storage but no protection from trap air that has moisture. Go ahead and try it for just 6 months.

 

Try it with some inexpensive silver coins. Ex: 1960s silver quarters.

 

You will immediately know if the bags were not sealed and when that happens, the machine is broken not the bags.

 

Oooooh, finding silver quarters CRH feels like such a prize! Finding even one of those really makes Meow's day!

 

It does, but they aren't worth too much. Last year I bought quite a few (Washingtons) for $2.9 each.

 

Yea, they are not really worth all that much; But they are so hard to find, it is a real treat to find one.