Vampirella #2 Mark Spears covers are listed as volume 8 on CLZ, but CGC labels them as Volume 7 as does Dynamite.
Hi, happy to answer this. Due to Dynamite releasing #666 - 675, it messed up the volume numbering. I’m unsure at the moment where this title derived from, my guess is Vengeance of Vampirella but I’m not certain about that. Trowing those numbers in Vol. 6 doesn’t work as there’s a 3 year difference in between those numbers. Marvel does this often too. I’d ignore the vol. 7 as it’s just an error on their end.