Uncanny X-Men #221 CGC Signature Series 6.5 — Newsstand Edition, 1st Appearance of Mister Sinister, Signed by Chris Claremont

Uncanny X-Men #221 — Newsstand Edition; 1st appearance of Mister Sinister (Nathaniel Essex); Marauders appearance. Signed by Chris Claremont on 3/28/26. Chris Claremont story; Marc Silvestri & Dan Green cover & art. Marvel Comics 9/87. WHITE pages.

CGC Certificate #4737356023.

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CGC Box 6