Approximate
Condition Profile
MARVEL COMICS · 12/77 · NEWSSTAND
UNIT ECA-009251
JOHN CARTER, WARLORD OF MARS #7
Gil Kane cover on Marvel's Barsoom adaptation, Air Pirates of Mars continues
// Unit specification
| Publisher | Cover date | Era | Variant | Key attribute | Status |
|---|---|---|---|---|---|
| Marvel Comics | December 1977 | Bronze | Newsstand | — | AVAILABLE |
// Copies in archive
| Unit | Grade | Variant | Status |
|---|---|---|---|
| ECA-009251 | ~8.0 | Newsstand | AVAILABLE |
// Run position
// Condition analysis
Cover shows strong gloss and vivid color with sharp corners; a faint vertical crease/press line is visible running through the upper portion of the cover near the logo. Slight edge wear is visible at the top edge, and there is minor waviness near the spine, but no major creases, tears, or color breaks are apparent. The comic is in a protective sleeve which obscures some fine detail at the edges; interior and back cover were not assessed.
// Valuation — market reference
| Bracket | Grade | Est. market value | Marker |
|---|---|---|---|
| LOW_RAW | 0.5 – 1.5 | $2 | |
| MID_RAW | 4.0 – 6.0 | $6 | |
| HIGH_CERT | 9.8 SLAB | $260 |
// Archive commentary
John Carter, Warlord of Mars #7 continues Marvel's Bronze Age adaptation of Edgar Rice Burroughs' Barsoom novels, with Marv Wolfman scripting the ongoing planetary-romance adventures of John Carter and Dejah Thoris on Mars. The issue features a Gil Kane pencil cover finished by Rudy Nebres, with interior art by Tom Sutton, pairing two artists well known for genre and horror-adjacent work with a distinctive painterly, moody sensibility suited to the pulp source material. The supporting cast of Barsoomian regulars — Tars Tarkas, Kantos Kan, Mors Kajak, and Sola — populates this installment of the Air Pirates of Mars arc, reflecting Marvel's mid-1970s push to license classic pulp-adventure properties following the success of its Tarzan and Conan lines.
Market data shows a thin but active certified population, with only 25 Universal copies recorded across a small overall census and modest sales activity concentrated at the top grades. Demand skews almost entirely toward pristine 9.8 copies, where sales have outpaced census count, suggesting a small group of specialist collectors actively competing for top examples; the price curve falls off sharply below 9.4, typical of a title with a dedicated niche following rather than broad crossover demand. There is no meaningful secondary market for mid- or low-grade raw copies, which trade as filler in Bronze Age back-issue bins rather than as sought-after collectibles.
This issue is best understood as a supporting piece in complete-run collections of Marvel's John Carter series rather than a standalone key, appealing chiefly to Burroughs and Barsoom enthusiasts, Gil Kane cover completists, and Bronze Age adaptation specialists. High-grade certified copies will continue to command outsized premiums relative to raw material given the tight top-grade population, while mid- and low-grade copies remain inexpensive and plentiful, best suited to readers assembling the run economically rather than investment-grade acquisition.
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