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The X-Men #125
Marvel· 1979★ Key Issue

The X-Men #125

1st appearance of Proteus (Mutant X)

Trap checkDon't buy these

22 listingson eBay right now look like this issue but aren't it — usually the cheapest ones on the page. Here's what's wrong with each, so you don't buy the wrong book.

  • Wrong volume$1.00

    1990 Marvel #125 The X-Men 99

    Same title and issue number, but a different relaunch. Daredevil #1 exists in six volumes — the 1964 key and the 2023 reboot are not the same book.

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  • Not the comic$1.25

    The X-Men #125-M.V.C./1990 Impel Marvel Universe Trading Card

    A poster, empty slab, or other merchandise — not the book itself.

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  • Wrong volume$1.35

    1990 Marvel #125 M.V.C. the x-men

    Same title and issue number, but a different relaunch. Daredevil #1 exists in six volumes — the 1964 key and the 2023 reboot are not the same book.

    View
  • Wrong volume$1.99

    Marvel Universe Series 1 (Impel, 1990 series) #125 The X-Men NM/M

    Same title and issue number, but a different relaunch. Daredevil #1 exists in six volumes — the 1964 key and the 2023 reboot are not the same book.

    View
  • Not the comic$1.99

    Marvel #125 Comics The X-men 1990 Series #1 Trading Card

    A poster, empty slab, or other merchandise — not the book itself.

    View
  • Wrong volume$1.99

    1990 Impel Marvel Comics Universe M.V.C. Series 1: The X-men First Issue #125

    Same title and issue number, but a different relaunch. Daredevil #1 exists in six volumes — the 1964 key and the 2023 reboot are not the same book.

    View
  • Wrong volume$2.00

    #125 - Wolverine and the X-Men #13 ~ NEAR MINT NM ~ 2012 Marvel Comics

    Same title and issue number, but a different relaunch. Daredevil #1 exists in six volumes — the 1964 key and the 2023 reboot are not the same book.

    View
  • Wrong volume$3.48

    1990 Impel Marvel Universe Series1 M.V.C The X-Men #125

    Same title and issue number, but a different relaunch. Daredevil #1 exists in six volumes — the 1964 key and the 2023 reboot are not the same book.

    View

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Guide value · CGC 9.8
$322
Estimated current value from PriceCharting
—

An estimate of what this grade is worth today, not a record of any sale. Guide values are trailing aggregates, so they lag a fast-moving book — a copy that just sold at auction may have gone for well above or below this.

Where the copies sit

Only 1 copy on the market at this grade — nothing to compare it against.

Guide value

UpdatedGradeEstimate
Aug 29, 2026CGC 9.8$322.25

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