I recently bought the GOF P13a Monolith Trophy card. I knew the card was shown on

in a special case, but at the time I thought it was just like the snap cases. By that I mean I could remove the card once I got it. It came today sealed in a plastic case. At the top was a card which on the front list the vital imformation for the card. On the back the card says: PA Sports Professional Authenticators, a division of Collector's Universe NASDAQ CLCt. Here are the pictures off of

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I had planned to remove the card from what I thought was a temporary case and put it in a plastic sleeve like my other cards. Now I don't know what to do. I've never run across I card quite like this. I don't know if I should remove it from the case ore leave it as it is. Any suggestions?