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Challengers of the Unknown #63
	DC Comics, 8-9/68

Arnold Drake story
Bob Brown and Jack Abel art
Bob Brown cover

Books	CGC Label	CGC Total	Avg. Grade	Census Date	10	9.9	9.8	9.6	9.4	9.2	9.0	8.5	8.0	7.5	7.0	6.5	6.0	5.5	5.0	4.5	4.0	3.5	3.0	2.5	2.0	1.8	1.5	1.0	0.5
1. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	1	7.50	July 17, 2003										1
2. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	1	7.50	January 08, 2004										1
3. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	1	7.50	July 12, 2004										1
4. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	1	7.50	December 16, 2004										1
5. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	1	7.50	July 07, 2005										1
6. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	1	7.50	January 27, 2006										1
7. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	2	8.35	June 20, 2006						1				1
8. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	2	8.35	January 10, 2007						1				1
9. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	2	8.35	July 05, 2007						1				1
10. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	2	8.35	January 09, 2008						1				1
11. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	3	8.63	July 01, 2008						2				1
12. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	3	8.63	January 13, 2009						2				1
13. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	3	8.63	June 24, 2009						2				1
14. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	3	8.63	December 15, 2009						2				1
15. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	3	8.63	June 14, 2010						2				1
16. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	3	8.63	December 27, 2010						2				1
17. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	4	8.83	June 27, 2011					1	2				1
18. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	4	8.83	January 02, 2012					1	2				1
19. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	5	8.94	July 02, 2012					2	2				1
Books	CGC Label	CGC Total	Avg. Grade	Census Date	10	9.9	9.8	9.6	9.4	9.2	9.0	8.5	8.0	7.5	7.0	6.5	6.0	5.5	5.0	4.5	4.0	3.5	3.0	2.5	2.0	1.8	1.5	1.0	0.5
20. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	6	8.98	December 31, 2012					2	3				1
21. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	8	9.09	June 22, 2013				1	2	4				1
22. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	9	9.12	December 31, 2013				1	3	4				1
23. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	9	9.12	July 01, 2014				1	3	4				1
24. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	9	9.12	December 30, 2014				1	3	4				1
25. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	9	9.12	June 30, 2015				1	3	4				1
26. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	9	9.12	December 29, 2015				1	3	4				1
27. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	10	9.01	June 28, 2016				1	3	4			1	1
28. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	10	9.01	December 27, 2016				1	3	4			1	1
29. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	10	9.01	June 27, 2017				1	3	4			1	1
30. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	10	9.01	January 02, 2018				1	3	4			1	1
31. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	10	9.01	July 03, 2018				1	3	4			1	1
32. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	10	9.01	January 01, 2019				1	3	4			1	1
33. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	10	9.01	July 02, 2019				1	3	4			1	1
34. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	10	9.01	December 31, 2019				1	3	4			1	1
35. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	10	9.01	June 30, 2020				1	3	4			1	1
36. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	10	9.01	December 29, 2020				1	3	4			1	1
37. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	10	9.01	June 29, 2021				1	3	4			1	1
38. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	10	9.01	December 28, 2021				1	3	4			1	1
39. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	11	8.83	June 28, 2022				1	3	4			1	1	1
Books	CGC Label	CGC Total	Avg. Grade	Census Date	10	9.9	9.8	9.6	9.4	9.2	9.0	8.5	8.0	7.5	7.0	6.5	6.0	5.5	5.0	4.5	4.0	3.5	3.0	2.5	2.0	1.8	1.5	1.0	0.5
40. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	11	8.83	December 27, 2022				1	3	4			1	1	1
41. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	12	8.86	June 27, 2023				1	3	5			1	1	1
42. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	13	8.87	December 31, 2023				1	3	5	1		1	1	1
43. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	16	8.53	June 17, 2025				2	3	5	1		1	2	1						1
44. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	16	8.53	June 24, 2025				2	3	5	1		1	2	1						1
45. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	16	8.53	July 01, 2025				2	3	5	1		1	2	1						1
46. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	16	8.53	July 15, 2025				2	3	5	1		1	2	1						1
47. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	16	8.53	July 22, 2025				2	3	5	1		1	2	1						1
48. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	16	8.53	July 29, 2025				2	3	5	1		1	2	1						1
49. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	16	8.53	August 05, 2025				2	3	5	1		1	2	1						1
50. Challengers of the Unknown 63 (8-9/68, DC Comics)	Universal	16	8.53	August 12, 2025				2	3	5	1		1	2	1						1

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"CGC Census Analysis" is provided by Greg Holland (©2003-2025).
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Used with permission of CGC since 2003. Data is from July 01, 2001 to August 12, 2025.
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