Comics › X-Factor #21 Mark Jewelers Insert Variant Image 1 of 1 X-Factor #21 Mark Jewelers Insert Variant $4.99 Louise and Walt Simonson's X-Factor from 1987, starring the original five X-Men. Mark Jewelers insert edition (with the jewelry ad insert bound in). Add To Cart Added! Louise and Walt Simonson's X-Factor from 1987, starring the original five X-Men. Mark Jewelers insert edition (with the jewelry ad insert bound in).
Image 1 of 1