submitting us mint sealed coins

I have never submitted coins to pcgs ...but am going to ship a couple off this week. One is an AE sealed in the US mint case... can I ship it in that or do I have to remove it?
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ok so is only been 15 min but I am excited about sending in my coins... and ths is the last coin to submit and not sure if I can do it or not
thanks for any help.
I guess I have nothing to lose ..worst thing is they send my coin back...
to me it looks flawless and is early strike so worth a try.
thanks for the reply