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Detective Comics #331 front cover
~4.0 AI-Estimated
Approximate
Condition Profile
DETECTIVE COMICS #331
DC COMICS · 9/64
UNIT ECA-008064

DETECTIVE COMICS #331

Silver Age Batman adventure from the Schwartz era, September 1964

SIG 3/10 Available

// Unit specification

PublisherCover dateEraVariantKey attributeStatus
DC Comics September 1964 Silver AVAILABLE

// Copies in archive

UnitGradeVariantStatus
ECA-008064 ~4.0 AVAILABLE

// Run position

Part of an unbroken run · #329–#331 · 3 issues View all 26 available issues of DETECTIVE COMICS →

// Condition analysis

⚠ AI-Estimated / Approximate Condition Profile

This 1964 issue predates the direct/newsstand distinction so no variant applies. Visible defects include significant spine wear with multiple stress lines and a crease near the top, a vertical crease running through the spine area, edge wear and small chips along the left edge, a handwritten price/number notation in ink on the cover, and general surface wear with slight discoloration at the edges. Corners show some rounding and softness. The book is in a protective sleeve; interior and back cover were not assessed.

// Valuation — market reference

⚠ AI-Estimated values — approximate, not an appraisal
BracketGradeEst. market valueMarker
LOW_RAW 0.5 – 1.5 $12
MID_RAW 4.0 – 6.0 $48
HIGH_CERT 9.8 SLAB $750

// Archive commentary

Detective Comics #331 arrived in September 1964, squarely within Julius Schwartz's New Look revamp of the Batman titles, a period marked by the yellow oval bat-emblem, tighter plotting, and a deliberate move away from the sillier science-fiction excesses of the late 1950s. The issue is a representative example of the era's house style, with cover work typical of Carmine Infantino's design sensibility for the line and interior art produced under the Bob Kane shop banner, as was standard practice for Batman books through the mid-1960s. It is not associated with a first appearance, origin story, or landmark creative milestone, and does not carry recognized key status in standard price guides.

Market data shows a modest but actively traded population, with 87 of 93 census copies in the Universal category and consistent sales activity from grade 6.0 up through 9.2, where the most recent fair market value sits near $220 and the trailing year average around $178. The scarcity thins out considerably above 9.2, with only a handful of 9.4s and 9.6s recorded and a single 9.8 on census that has not generated a sale, indicating the book is genuinely difficult to source in top grade despite unremarkable demand at the low and mid end. Pricing follows the expected Silver Age curve: gradual, incremental gains through mid-grade with a pronounced premium concentrated in the top few certified copies.

This is a book suited to Silver Age Batman completists and run-builders rather than key-issue investors, and it trades accordingly: low and mid-grade raw copies move steadily but for modest sums, while the appeal in high grade comes almost entirely from census scarcity rather than story significance. A 9.8, given the complete absence of a sales comp at that grade, would likely attract strong collector interest simply as the finest known example, but pricing there remains speculative until a transaction establishes the ceiling. For most buyers, this title functions as steady, low-cost run material that fills a specific slot in a Batman or Detective Comics collection rather than a marquee acquisition.

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