Price history & market evidence
PriceCharting guide history
Dated guide estimates for this edition, separate from completed sales.
1 dated observation—one point does not establish a trend. Last recorded 2026-10-06. Source record #2424533
Price observations belong to this edition. Guide estimates, catalog references and completed sales are separate kinds of evidence.
| Grade | Amount | Evidence | Recorded |
|---|---|---|---|
| 4.0 | $33.90 | PANEL_PROFITS · grade_4_0_valueguide | 1960-10-01 |
| 6.0 | $135.99 | PANEL_PROFITS · grade_6_0_valueguide | 1960-10-01 |
| 8.0 | $348.58 | PANEL_PROFITS · grade_8_0_valueguide | 1960-10-01 |
| 9.2 | $2,820.62 | PANEL_PROFITS · grade_9_2_valueguide | 1960-10-01 |
| 9.6 | $3,103.00 | PANEL_PROFITS · grade_9_6_valueguide | 1960-10-01 |
| 9.8 | $182.49 | PANEL_PROFITS · grade_9_8_valueguide | 1960-10-01 |
| RAW | $17.17 | PANEL_PROFITS · ungraded_valueguide | 1960-10-01 |
| 10.0 | $3,667.00 | PANEL_PROFITS · grade_10_0_valueguide | 1960-10-01 |
| 9.2 | $52.00 | 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 8 guide observations and 1 catalog references. These are reference values, not guaranteed sale proceeds.
Graded population
CGC records 36 graded copies for Challengers of the Unknown #16 (1960). Population is the number recorded by this grading source, not the total print run or all surviving copies.
The Incredible Metal Creature
While chasing a crook named Albom, the Challengers) must face his creation Halanka, a creature composed of metal. Nothing the Challengers do can fight off the beast until they run into an alien who informs them that the creature Halanka is not a creation of Albom, but an alien from another world. With the aid of the alien, the Challengers manage a way to stop Halanka, and both parties manage to collect their targets. Two Challengers rescue an interplanetary lawman, Thark, who comes to their aid. Using Thark's force-field gun, the Challengers get close enough to "bowl" Halanka over.
| StoryTitle2 = Prisoners of the Mirage World | Synopsis2 = When June Robbins crashes in the desert, the Challengers go to her rescue. Landing at the crash site they find the delirious June stumble into a strange materializing kingdom. Following her, the Challengers get caught up in a fight against the realms rulers, who inform them that their kingdom, to learn that the next time the castles bells chime the kingdom will disappear from Earth and the Challengers will be trapped there. Forced to compete in their gladiator games, the Challengers manage to break free, save June's life, and get out of the kingdom before it vanishes once more.
| Appearing1 = **Featured Characters:** * Challengers of the Unknown) ** Walter Haley) ** Lester Davis) ** Matthew Ryan) ** Kyle Morgan) **Supporting Characters:** * **Antagonists:** * **Other Characters:** * **Locations:** * **Items:** * **Vehicles:** *
| Appearing2 = **Featured Characters:** * Challengers of the Unknown) ** Walter Haley) ** Lester Davis) ** Matthew Ryan) ** Kyle Morgan) **Supporting Characters:** * June Robbins) **Antagonists:** * **Other Characters:** * **Locations:** * Mirage World * **Items:** * **Vehicles:** *
| Notes = | Trivia = | Recommended = | Links =
Creative credits
Writers: Ed Herron, Ed Herron
Interior art: Bob Brown, Bob Brown
Source records & attribution
Panel Profits keeps each source identity attached to its edition record.
COMICBASE: comicbase:224112
GCD: 15856
PANEL PROFITS: 2424533