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Fantastic Four #27 front cover

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~5.5 AI-Estimated
Approximate
Condition Profile
FANTASTIC FOUR #27
MARVEL COMICS · 6/64
UNIT ECA-019000

FANTASTIC FOUR #27

First meeting of the Fantastic Four and the X-Men, featuring the Sub-Mariner

Key Issue SIG 6/10 Available

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// Unit specification

PublisherCover dateEraVariantKey attributeStatus
Marvel Comics June 1964 Silver — First meeting/team-up of the Fantastic Four and the X-Men; concludes the two-part Sub-Mariner story from issue #26; Jack Kirby cover and pencils AVAILABLE

// Copies in archive

UnitGradeVariantStatus
ECA-019000 ~5.5 — AVAILABLE
ECA-028548 ~3.5 — LISTED ON EBAY ↗ (opens eBay in a new tab)

// Run position

Part of an unbroken run · #22–#27 · 6 issues View all 361 available issues of FANTASTIC FOUR →

// Condition analysis

⚠ AI-Estimated / Approximate Condition Profile

This 1964 Silver Age issue (pre-1977, so no direct/newsstand distinction applies) shows moderate handling wear: visible vertical creasing and waviness across the upper right of the cover, a small crease/tear at the top edge near the spine, and general surface wrinkling suggesting the book was read and handled. Corners appear moderately rounded with some wear, and there is a slight color break along the spine area. The comic is protected in a plastic sleeve which adds some glare but the overall gloss appears reduced with visible aging/toning at the edges. Interior pages and back cover were not assessed from this photo.

// Valuation — market reference

⚠ AI-Estimated values — approximate, not an appraisal
BracketGradeEst. market valueMarker
LOW_RAW 0.5 – 1.5 $45
MID_RAW 4.0 – 6.0 $125
HIGH_CERT 9.8 SLAB $12,500

// Archive commentary

Fantastic Four #27, cover-dated June 1964, closes out the two-part Sub-Mariner story begun in issue #26 and stands out for bringing Marvel's two flagship teams together for the first time: the X-Men appear as guest stars in the hunt for Namor across the streets and rooftops of New York. Written by Stan Lee with pencils by Jack Kirby, the issue reflects the tightly interconnected Marvel Universe Lee and Kirby were building in 1964, where separate titles' casts could collide within a single ongoing continuity. The inter-team crossover format, still a novelty for the era, gives the issue historical weight beyond its immediate plot.

Market data shows a large, well-populated census exceeding 1,100 Universal copies, with steady sales activity across nearly every grade tier and pricing that rises sharply above 9.0 as supply thins dramatically. The jump from 9.4 to 9.6 nearly doubles in realized value, and the near-total absence of certified 9.8 copies against continued demand suggests any such copy would command a substantial premium over the top of the existing curve. Demand is driven by both Fantastic Four and X-Men completists, as well as collectors building crossover and first-meeting subsets within Silver Age Marvel.

The book trades as a mid-tier Silver Age Marvel key: readily available in lower and mid grades at modest cost, making it accessible to run-builders and Lee/Kirby collectors, while high-grade and top-census copies are scarce and contested among specialists pursuing crossover milestones. Its appeal broadens with any Kirby cover interest and general Silver Age Marvel demand, positioning it as a steady, if not headline-grabbing, presence at auction across all grade bands.

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