I have recently seen a post about CGC grading a Gamma playtest Shivan Dragon. I was really happy to see that as this brought a lot attention to playtest cards, as well as a way to authenticate them.
I myself have a Menagerie (Mirage) Playtest card that has been previously owned by a person who is probably the most knowledgeable about this and helped authenticating the Shivan Dragon as well.
My question, hence, is whether CGC would grade a Menagerie playtest card, as it's well documented and has been then released as the Mirage set.
Thanks a lot and Merry Christmas to the whole team!