Good morning, I'm writing here because I'm in a new situation for me and I don't know how to behave. At Lucca Comics and Games 2023, for an incredible series of lucky coincidences, C. B. Cebulski, Marvel's editor-in-chief, handed me an ultra-rare variant of Amazing Spider-Man #29 and autographed it. As can be read from the certificate of which I attach photo, this is a variant in a very limited print of only 25 copies worldwide, which are delivered exclusively in person by Cebulski, therefore without the possibility of buying them. The comic is obviously in practically perfect condition, I busted it instantly and treated it like a relic. I found absolutely nothing about it on the internet. Now I would like to understand how much it can be worth in broad terms, and if you think it is appropriate to have it graded, because I live in Italy and it makes me a little anxious to ship it to America. Thank you so much for your attention!
