Uncanny X-Men

(1963) #421

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• writer

  Chuck Austen

• writer

  Stan Lee

• penciller (cover)

  Chris Bachalo

• letterer

  Chris Eliopoulos

• penciller

  Ron Garney

• editor

  Mike Marts

• inker

  Mark Morales

• colorist

  Jd Smith

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All data from the awesome folks at Marvel.