Price history & market evidence
Price observations belong to this edition. Guide estimates, catalog references and completed sales are separate kinds of evidence.
| Grade | Amount | Evidence | Recorded |
|---|---|---|---|
| 9.6 | $91.00 | ComicBase · catalog referencecatalog | Date not recorded |
Reading this edition’s market
Compare the same cover, printing and grade before setting a bid. A raw guide or a higher-grade price does not establish a slab’s value. Include selling fees, shipping and the depth of completed-sale evidence when assessing an exit price.
The table includes 0 guide observations and 1 catalog references. These are reference values, not guaranteed sale proceeds.
Graded population
CGC records 148 graded copies for Justice League of America #40 (1965). Population is the number recorded by this grading source, not the total print run or all surviving copies.
Indestructible Creatures of Nightmare Island!
Andrew Helm, the last survivor of a peaceful society that was destroyed by superstitious outsiders has invested all his time to creating the Corti-Concious Machine, a device that channels the goodness of histories greatest humanitarians and imposes it on the entire population of the Earth. Using an astral projection ability learned from the monks of Ta Ming, Helm travels the world to see the impact of his invention.
This happens as the Flash) is battling Mirror Master) and the Shark), and Batman is battling the Penguin and Captain Cold. During both heroes fights, they are shocked to find their opponents suddenly go from being evil to being good. Traveling to JLA headquarters, the JLA members are shocked to learn that all over the world every human being is ending conflict and turning to peace.
Helm's achieved world peace is only short lived however when his machine malfunctions and suddenly the world erupts into total chaos and violence. Having been out of his physical body too long, Helm finds that he is trapped and cannot shut down the device. However, he manages to get the Justice League to go to his island base and fight off the nightmare generated devices in order to shut the machine down. With the device deactivated and the planet restored to relative peace, Green Lantern seals the island in a dome and the JLA return home wondering who built the device to begin with.
Creative credits
Writers: Gardner Fox
Interior art: Mike Sekowsky
Source records & attribution
Panel Profits keeps each source identity attached to its edition record.
COMICBASE: comicbase:611583
GCD: 19630