X-Men #1 KEY
First appearance of the X-Men (Cyclops, Marvel Girl, Beast, Angel, Iceman) and Professor X / Magneto.
Print run records
D · Repeated claim 200,000–300,000 copies
Repeated claim
The initial print run was estimated at between 200,000 and 300,000 copies, a modest figure for the time.
Source: mycomicscollection.com -- "X-Men First Appearance: Complete Analysis of X-Men #1 (1963)" (Other)
Scarcity proxies (not print-run figures — adjacent data used to infer rarity)
None recorded yet.
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