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Independent · Challengers of the Unknown · #2 · Silver Age · ID-2424537
Stored prices by grade and source, exactly as recorded. A source with no price for a grade shows a dash.
Your cost basis next to the stored PriceCharting price for the grade you hold
Track your holding in your portfolio. Record your grade (0.5–10.0 or Raw), grading authority (CGC, CBCS, PSA, or Raw), acquisition cost basis, and purchase date to activate real-time equity valuation, unrealized ROI, and capital gains tracking.
Dated PriceCharting snapshots and recorded sales. Nothing is drawn where no dated price exists.
AI-scored · tracking Challengers of the Unknown · refreshes every 2 min
RSI needs 15 dated prices; 1 on file for 9.8.
BB20 is waiting for 20 dated prices for 9.8; no shorter window is substituted.
Market-wide signal (top 4) · Issue-specific signal (bottom 2 · tagged ISSUE)
Challengers of the Unknown #2 demonstrates disciplined liquidity depth and stable sovereign grade spread characteristics across current secondary market trading.
News linked to this book, the Grand Comics Database record, variants and the source of each figure.
Jack Kirby
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typeset
| Grade | Panel Profits |
|---|---|
| 10.0 | $20,157.00 |
| 9.8 | $15,505.75 |
| 9.2 | $2,100.12 |
| 8.0 | $1,560.00 |
| 7.0 | $243.11 |
| 6.0 | $365.00 |
| 5.0 | $170.67 |
| 4.0 | $85.85 |
| 3.0 | $69.00 |
| 2.0 | $55.00 |
| Raw | $73.50 |
Single-source econometric valuation across 1 verified monthly observation epochs (0Y runway)
Hedonic age factor + census scarcity weighting.
80% Interval: Unmeasured (Insufficient Volatility Sample)
Wholesale realization (45% haircut · ILLIQUID_SPECIALTY)
Relative-value gravitational equilibrium anchored to the foundational genesis instruments of sequential art.
| Grade | Dealer Buy (Bid) | Retail Sell (Ask) | Spread | Underwriting House |
|---|---|---|---|---|
| 6.0 | $201.00 | $402.00 | 50.0% | Khamsin Custodial |
| 4.0 | $37.60 | $93.99 | 60.0% | Khamsin Custodial |
| Raw | $32.40 | $80.99 | 60.0% | Arnveld Capital |
Multi-tier analytical consensus distinguishing public truth, firm posture, desk urgency, and personal exposure
Generational apex asset with museum-grade historical prestige.
Publisher profile coming soon
Marvel revolution. Stan Lee, Jack Kirby, and Steve Ditko create the modern superhero. Spider-Man, Fantastic Four, X-Men debut.
The sweet spot for collectors — significant enough to be culturally important, scarce enough to be valuable. 9.8 copies are extremely rare.
In illiquid alternative asset markets, sovereign blue-chip holdings trade at an exponential multiple over mid-grade float due to institutional accumulation and inelastic seller reservation prices.
While answering the call from a prospector to get a strange creature out of his cave, the Challengers are interrupted from their task by June Robbins who warns them that her computer warned that their most recent mission would lead to their death. Undaunted, even with June's attempts to stop them, the Challengers lure the creature out of the cave. Once they lure it out far enough they find that away from it's natural habitat, the creature cannot survive and it quickly dies. The Challengers realize that if they went through with their original plan that was interrupted by June they would have died.
Valuation parity across physical collectible manifestations for Challengers of the Unknown #2.
CGC, CBCS, PSA Universal certified high-grade specimens (9.8 / 9.6 / 9.4). The gold standard for institutional alternative investment.
Official witnessed creator-signed slabs (Yellow label). Valued based on creator historical stature and inscription provenance.
Certified specimens from landmark historical collections (Edgar Church / Mile High, White Mountain, Kansas City, Pacific Coast).
Original newsstand barcode distribution copies. Extremely scarce in high grade due to newsstand rack wear and unsold return pulping.
Regional price test market copies (Canadian 75¢/95¢ variants, Marvel 30¢/35¢ test variants). Highly coveted micro-population rarities.
Exclusively allocated copies requiring retailer orders of 1:25, 1:50, 1:100, or 1:500 standard copies. Immediate manufactured scarcity.
Unslabbed collector copies inspected under standard Overstreet physical guidelines. The primary pool for grading arbitrage.
Alternative artistic interpretations, virgin covers, metal foil, and convention exclusives with dedicated collector followings.
Standard specialty comic shop printings sold through non-returnable distribution. The baseline circulation foundation.
Green label copies with significant manufacturing flaws, unwitnessed signatures, or missing coupons that do not affect the main story.
Purple label copies with professional or amateur color touch, tear seals, piece fill, or spine rebuilds.
Blue/Grey label copies treated exclusively with archival preservation techniques (leaf-casting, rice paper tear reinforcement, solvent wash).
Official second, third, or later printings released to satisfy secondary market sellouts. Distinct cover art and trade dress.
International editions licensed by La Prensa (Mexico), Editora Abril (Brazil), Panini (Europe), or Titan (UK).
Certified printing oddities (missing foil, inverted interior, double covers, foil color error). Unique curiosity pieces.
Advance promotional black-and-white booklets, ashcans created to secure trademark rights, and preview giveaways.
Each cover variant, retailer incentive, and subsequent printing represents an independent atomic tradeable instrument with unique supply elasticity, barcode registration, and secondary market demand.
?, ? [as Your Mole at 1700]
?, ? (photo), various (thumbnails), ? (photograph)
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?, ? (photo), various (thumbnails), ? (photograph)
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Inspect underlying sources, timestamps, and confidence factors for any market claim
All prices are current market price based on historic completed sales with a buyer and seller agreeing on price. Calculated via proprietary algorithm tracking end-of-month historical sales. Unsold items are excluded.
Stored PriceCharting 9.8 price for product 2424537. 1 dated nightly snapshot on file for this book.
June joins Batman, Aquaman, and the Sea Devils to investigate an anomaly under the sea that is related to Ultivac, the robotic intelligence that considers June its mother because of her role in its creation. Meanwhile, Mister Terrific continues to investigate the Challengers' connection to the anomalies.
A prospector uncovers a monster, an indestructible one-eyed walking box that tramples villages. The Challengers's weapons don't make a dent. And June mysteriously sabotages their efforts! Prof finally guesses the monster's one eye is solar-powered. Pursued until sunset, the monster expires. June had run a computer program that predicted the Challengers would die, hence her sabotage. But her efforts changed the equation, so she saved the day!
Aliens save the planet Earth from a collision course with a giant meteor by moving Earth out of its orbit.
The Challengers pursue Roc, a would-be conqueror. Using "mind over matter," Roc runs them off by mentally conjuring a giant ape and missile. Fighting fire with fire, the scientist who created the mind-over-matter machine gives Ace similar powers. They battle with a conjured dragon, knight, giant vacuum cleaner, mirrors, and more. Finally Ace uses spinning circles to hypnotize and capture Roc.
Spotlight on: Catwoman: When in Rome #1. Other blurbs: Green Lantern: Rebirth; Solo; dccomics.com.
Recorded price evidence by source and grade tier. Ungraded / RAW pricing represents loose physical copies; certified grading authorities record authenticated slabbed grades only. Unpriced grades remain unpriced.
| Authority Source / Metric | RAWUNGRADED | 1.8 | 3.0 | 4.0 | 5.0 | 6.0 | 7.0 | 8.0 | 9.0 | 9.2 | 9.6 | 9.8ANCHOR | 10.0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Panel Profits(Exchange FMV) | $73.50 | — | $69.00 | $85.85 | $170.67 | $365.00 | $243.11 | $1,560.00 | — | $2,100.12 | — | $15,505.75 | $20,157.00 |
Panel Profits(Bid (Buy Price)) | $32.40 | — | — | $37.60 | — | $201.00 | — | — | — | — | — | — | — |
Panel Profits(Ask (Sell Price)) | $80.99 | — | — | $93.99 | — | $402.00 | — | — | — | — | — | — | — |
Panel Profits(Annual Volume) | — | — | — | — | — | — | — | — | — | — | — | 8 tracked sales | — |
Panel Profits(Realized Listings) | — | — | — | — | — | — | — | — | — | — | — | 8 sold | — |
Highest verified price observed. Non-9.8 books never receive a 9.8 price or synthetic valuation.
ComicBase catalog guide reference valuation. Evaluated independently from newsstand cover prices and certified slabs.
Historical cover price stamped on physical newsstand or direct copies at initial publication.
Panel Profits decodes auction transaction feeds into sovereign econometric market valuations and bid-ask spreads. CGC, CBCS, and PSA never carry RAW prices.