Are you allowed to put regular coins in here?

So can you put a non error coin in a error 2x2 or are these reserved for error coins only?
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So can you put a non error coin in a error 2x2 or are these reserved for error coins only?
Comments
Wow... Paging @ErrorsOnCoins .... Here is one for your inventory....
Might be a big premium...Cheers, RickO
Looks like a mechanical error.
Worry is the interest you pay on a debt you may not owe.
"Paper money eventually returns to its intrinsic value---zero."----Voltaire
"Everything you say should be true, but not everything true should be said."----Voltaire
First I must ask, "Did you find it in a parking lot?"
Will PCGS grade it?
Collector
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Looks like a "Half Moon Clip" did you get both or just one?
Post manufacturer damage. PMD
2x2 boo boo.
What's the obv look like? Keeper! Peace Roy
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Or even CAC with a green bean