Marvel Mini Comic Book X-Men #1 #[nn]

This is an exact duplicate of the original X-Men #1 (1963 series) except it is a mini comic. This comic is part of a set of 7. They each came in a plastic sleeve with a keychain attached and a card with the title of the mini comic. On the back of the card it said; "MARVEL Mini Comic Book Keychain, Collector's Size, Full Length Edition". Other comics in the set are Fantastic Four #1 (1961 series), Daredevil #1 (1964 series), Incrdeible Hulk #34 (2000 series), Ultimate Spider-Man #1 (2000 series), Spider-Girl #1 (1998 series), Avengers #4 (1963 series).