Hi, I was wondering if the following Marvel cards are accepted for grading:
1. Planet Metal inserts from the Spider-Man Metal Universe. These inserts are metal cards, and I've seen a lot of posts about how metal Pokemon are not currently being encapsulated. Was wondering if the same would apply to these Planet Metal cards.
2. Printing Plates. Similar to above, since these are also metal.
3. Autograph cards, for example, from the "Into the Spider-Verse" series. Would these receive a Qualified green label or designated with something like "Unwitnessed signature."
4. Marvel series sketch cards that are marked "AP" (artist proofs), or sketch cards where the artist is unknown. Would these be accepted for grading and if so, would these be graded differently than other sketch cards?
Thanks in advance!