X-MEN #108 - A key Bronze issue from Marvel published December 1977.
This is a significant issue: Corsair is revealed to be the father of Cyclops. (But not yet to Cyclops himself).
✦ CREATIVE TEAM
Writer: Chris Claremont
Penciler: John Byrne
Inker: Terry Austin
Letterer: Denise Wohl
Letterer: Tom Orzechowski
Editor: Archie Goodwin
Cover_artist: Dave Cockrum
Cover_artist: John Byrne
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✦ DETAILS
Publisher: Marvel
Era: Bronze
Volume: Volume 1
Significance: John Byrne art starts, Corsair revealed to be Cyclops Father. 1st Appearance of Jahf and Modt (first and second Guardians of the M'kraan Crystal)
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✦ NOTABLE FACTS
Corsair is revealed to be the father of Cyclops. (But not yet to Cyclops himself)