FANTASTIC FOUR #131

Graded at 6.5 (FN+) on 2026-11-02, from new photos taken out of the sleeve: front, back and interior page. Non-breaking crease about two inches long across the lower left of the back cover. A few tiny spine ticks. Bright front with sharp corners. Tiny smudge on the top front margin. Cream pages.

Fantastic Four #131 (Marvel, February 1973) closes out a three-issue storyline pitting Earth's First Family against the Over-Mind, a godlike telepathic conqueror introduced by writer Gerry Conway and penciler John Buscema two issues earlier. Buscema, inked by Joe Sinnott, delivers the widescreen cosmic action that defined his run on the title during this period, with the team facing overwhelming psychic force rather than a conventional supervillain. The issue arrives in the midst of Marvel's early-1970s expansion of galactic-scale stakes for its flagship superhero team, a narrative thread that would recur throughout the decade.

Market data shows a book that trades as a solid but unspectacular mid-run Bronze Age FF issue: values stay compressed and modest through the mid grades before a sharp climb toward the top of the census, a pattern typical of well-preserved but not particularly scarce comics from this era. Demand is driven primarily by completist Fantastic Four collectors and Buscema/Sinnott art fans rather than key-issue speculators, since the issue carries no first appearance, death, or origin story. The wide gap between raw and 9.8 pricing reflects how few copies survive in true gem-mint condition relative to the substantial print run.

This is a book collectors acquire to fill out a complete FF run or a John Buscema art collection rather than as a standalone investment target. Lower and mid-grade raw copies move steadily and affordably among run-builders, while pristine 9.8 slabs command a real premium from condition-census chasers, given the scarcity of top-graded copies relative to the overall population. Long-term appreciation is likely to track the broader Bronze Age Fantastic Four market rather than outperform it.