"What If #12: X-Men Had Stayed in Asgard?" is a comic book published by Marvel Comics in 1990, during the Copper Age era of US Comics. The comic book is part of the "The Uncanny X-Men" series, featuring the iconic superhero team. This particular issue explores a unique scenario where the X-Men decide to stay in Asgard rather than returning to Earth. Although the comic is not signed, it is a collectible item that fans of the X-Men franchise and comic book enthusiasts would appreciate for its unique storyline and nostalgic value.