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DC·Justice League of America·#12·Silver Age·ID-2388198
| Grade | Census & Float Distribution | Copies / Slabs | Role | FMV | Sales | Total Value | Multiple |
|---|---|---|---|---|---|---|---|
| 9.8 | 0 slabs | 0 | $6,773.72 | — | — | (150.5x) | |
| 9.6 | 2 of 384 slabs (0.5%) | 2 | — | — | — | (0.5%) | |
| 9.4 | 16 of 384 slabs (4.2%) | 16 | SOV | $1,007.00 | 16 | $16,112 | (22.4x) |
| 9.2 | 22 of 384 slabs (5.7%) | 22 | $516.00 | 22 | $11,352 | (11.5x) | |
| 9.0 | 19 of 384 slabs (4.9%) | 19 | $431.00 | 19 | $8,189 | (9.6x) | |
| 7.0 | 34 of 384 slabs (8.9%) | 34 | ANC | $170.00 | 34 | $5,780 | (3.8x) |
| RAW | Raw Uncertified Copies | — | RAW | $45.00 | — | — | (1.0x Base) |
Empirical cash settlement intelligence, cross-grade elasticity curve, and secondary liquidation velocity.
Empirical step multipliers between adjacent condition tiers. Pinpoints the exponential premium transition and capital efficiency frontier.
Realized turnover cadence and capital absorption depth across certified auction comps.
Autonomous institutional strategies, financial equilibrium, scarcity modeling, and algorithmic risk profiling.
Market operates purely on organic buyer and seller auction discovery. Zero artificial price interventions or emergency liquidity halts on record.
Verified historical transaction line with quarterly equilibrium baseline anchor.
Understand how physical sales, invested dollars, and liquidity friction divide across grades.
Completed market sales by grade
Relative market value allocation
Estimated execution friction
Bibliographic provenance, creator credits, historical significance, and multimedia documentation.
Gardner Fox
Mike Sekowsky
Bernard Sachs
Julius Schwartz
Home of Superman, Batman, Wonder Woman, and the Justice League.
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.
Inspectable mathematical proof, blockchain/ledger provenance, data integrity validation, and asset taxonomy.
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.
Answering his JLA signal belt, Snapper Carr arrives at the Justice League sanctuary to find only a new costumed foe, Doctor Light. Light explains to Snapper that he built a device that uses light to transport it's victims to other dimensions. He used the heroes' signal devices to get the rest of the Justice League to meet and banished them to other dimensions. After forcing Snapper to write the final case file of the Justice League, Light uses his powers to freeze Snapper. Meanwhile, each hero finds themselves trapped on a different world: Aquaman on a world where there is no water; Martian Manhunter on a world of fire; Flash on a crystal world where there is no balance; Wonder Woman on a world where the brain functions differently, Green Lantern on a world that is entirely yellow, Superman on a world with a red sun, and Batman on a world where his scientific gadgets will not work. However, things are not as they seem: Before being banished to other worlds, Superman and Batman were working together on a case and Superman used his x-ray vision to see ahead and learned of Dr. Light's plot, so he and Batman traded costumes. Having been banished to Batman's intended world, Superman is able to get away and rescue the others and bring them back to Earth. There they save Snapper and split up to capture Dr. Light. However, each group finds that they have only caught light duplicates of Dr. Light. However, Green Lantern manages to find the real Dr. Light by using his power ring to make it look as though he was destroyed by Light so that he could track and find the real Dr. Light and capture him. Snapper decides to keep the case titled "The Last Case of the Justice League!" because the date which Dr. Light had chosen to attack the League was April 1st, April Fool's Day.
Strict algorithmic segregation separating clean single-issue Cover A sales from multi-issue lot bundles, retailer exclusives, and foreign variants.
Snapper Carr is summoned to the Justice League Sanctuary, only to find Dr. Light there. Light tells Snapper that he transported the rest of the Justice League to a surreal universe from which they can't escape. Once he's finished his tale, he freezes Snapper solid. But of course the Justice League saves the day.
“| Speaker =”
— | StoryTitle1 = The Last Case of the Justice League!
Answering his JLA signal belt, Snapper Carr arrives at the Justice League sanctuary to find only a new costumed foe, Doctor Light. Light explains to Snapper that he built a device that uses light to transport it's victims to other dimensions. He used the heroes' signal devices to get the rest of the Justice League to meet and banished them to other dimensions. After forcing Snapper to write the final case file of the Justice League, Light uses his powers to freeze Snapper.
Meanwhile, each hero finds themselves trapped on a different world: Aquaman on a world where there is no water; Martian Manhunter on a world of fire; Flash on a crystal world where there is no balance; Wonder Woman on a world where the brain functions differently, Green Lantern on a world that is entirely yellow, Superman on a world with a red sun, and on a world where his scientific gadgets will not work. However, things are not as they seem: Before being banished to other worlds, Superman and Batman were working together on a case and Superman used his to see ahead and learned of Dr. Light's plot, so he and Batman traded costumes.
This issue is reprinted in Justice League of America Archives, Volume 2, Showcase Presents: Justice League of America Vol. 1 (Collected) and Justice League of America (Volume 1) #76. First appearance of Doctor Light. He appears next in The Atom #8.
Having been banished to Batman's intended world, Superman is able to get away and rescue the others and bring them back to Earth. There they save Snapper and split up to capture Dr. Light. However, each group finds that they have only caught light duplicates of Dr. Light. However, Green Lantern manages to find the real Dr. Light by using his power ring to make it look as though he was destroyed by Light so that he could track and find the real Dr. Light and capture him. Snapper decides to keep the case titled "The Last Case of the Justice League!" because the date which Dr. Light had chosen to attack the League was April 1st, April Fool's Day.