DC·Batman Family·#3·Bronze Age·ID-2431621
| Grade | Census & Float Distribution | Copies / Slabs | Role | FMV | Sales | Total Value | Multiple |
|---|---|---|---|---|---|---|---|
| 9.8 | 4 of 27 slabs (14.8%) | 4 | SOV | $300.00 | 4 | $1,200 | (41.6x) |
| 9.6 | 4 of 27 slabs (14.8%) | 4 | — | — | — | (14.8%) | |
| 9.4 | 4 of 27 slabs (14.8%) | 4 | — | — | — | (14.8%) | |
| 9.2 | 1 of 27 slabs (3.7%) | 1 | $73.86 | 1 | $73.86 | (10.2x) | |
| 9.0 | 4 of 27 slabs (14.8%) | 4 | — | — | — | (14.8%) | |
| RAW | Raw Uncertified Copies | — | RAW | $7.21 | — | — | (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.
Elliot S. Maggin
José Luis García-López
Vince Colletta
Julius Schwartz, E. Nelson Bridwell, Bob Rozakis
Home of Superman, Batman, Wonder Woman, and the Justice League.
Comics grow darker and more socially aware. Wolverine, Punisher, Swamp Thing debut. Creator-driven storytelling emerges.
Newsstand variants carry meaningful scarcity premiums. First appearances from this era are blue-chip investments.









Bronze Age (1970–1984) — comics grew darker and more socially aware. The era of classic runs, creator-driven storytelling, and the birth of serious collecting culture. Newsstand variants carry a meaningful scarcity premium.
Inspectable mathematical proof, blockchain/ledger provenance, data integrity validation, and asset taxonomy.
A pricing discrepancy between an auction listing and the prevailing cleared consensus value across organized exchanges, allowing rapid liquidity capture before market equilibrium reconverges.
While on a visit to Princetown, Babara Gordon and Dick Grayson are forced to become Batgirl and Robin when dinosaurs attack the city and lead them to the "Isle of a Thousand Thrills". The island is complete with dinosaurs, warriors from the future, and the Spanish Inquisition and many of the people of Princetown follow the heroes to the location. The island proves to be very dangerous until Major Montana appears and reveals the truth behind the mysterious creatures. Montana prepared these illusions in order to provide the people of Princetown unending thrills without risks and after learning that there is no real danger, Batgirl and Robin leave the island for the enjoyment of the citizens of Princetown. However, as they admire the dedication by Major Montana, both heroes reveal the fact that they know each other's identities, but they part ways without explaining how they deduced their secrets.
Strict algorithmic segregation separating clean single-issue Cover A sales from multi-issue lot bundles, retailer exclusives, and foreign variants.