Comics › Uncanny X-Men #142 Facsimile Edition 2023 Image 1 of 1 Uncanny X-Men #142 Facsimile Edition 2023 $10.99 Uncanny X-Men #142 (Marvel, 1981), the conclusion of "Days of Future Past" by Chris Claremont and John Byrne. This copy is the 2023 facsimile edition. Add To Cart Added! Uncanny X-Men #142 (Marvel, 1981), the conclusion of "Days of Future Past" by Chris Claremont and John Byrne. This copy is the 2023 facsimile edition.