This is a rare copy of X-Men #37, published in 1967, featuring the 1st appearance of Mutant Master. The comic has been professionally graded by Certified Guaranty Company (CGC) as 6.0 Fine and is in great shape. It has off-white to white pages and has been kept in pristine condition over the years. This comic is perfect for any collector or fan of US Comics, especially those interested in the Silver Age (1956-69) era and the X-Men superhero team. The cover art is captivating on this silver age book. Don't miss your chance to own a piece of comic book history!