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Challengers of the Unknown #6
	DC Comics, 2-3/59

France Herron and Dave Wood stories		Full page ad for Flash #105
Jack Kirby and Wally Wood art
Jack Kirby 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 6 (2-3/59, DC Comics)	Universal	1	9.00	July 01, 2001							1
2. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	2	7.75	January 27, 2002							1					1
3. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	4	7.75	July 17, 2003							1		1	1		1
4. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	4	7.75	January 08, 2004							1		1	1		1
5. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	4	7.75	July 12, 2004							1		1	1		1
6. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	6	7.75	December 16, 2004							1		2	2		1
7. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	6	7.75	July 07, 2005							1		2	2		1
8. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	6	7.75	January 27, 2006							1		2	2		1
9. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	6	7.75	June 20, 2006							1		2	2		1
10. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	7	8.01	January 10, 2007				1			1		2	2		1
11. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	9	7.73	July 05, 2007				1			1		2	3		1	1
12. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	10	7.61	January 09, 2008				1			1		2	3		2	1
13. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	10	7.76	July 01, 2008				1			1		3	3		1	1
14. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	13	7.55	January 13, 2009				1			1		4	3		2	2
15. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	13	7.55	June 24, 2009				1			1		4	3		2	2
16. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	14	7.26	December 15, 2009				1			1		4	3		2	2					1
17. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	17	7.15	June 14, 2010				1			2		4	3	1	2	2				1	1
18. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	18	7.01	December 27, 2010				1			2		4	3	1	2	2			1	1	1
19. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	20	7.14	June 27, 2011				1		1	2		4	4	1	2	2			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
20. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	22	7.17	January 02, 2012				1		1	3		4	4	1	2	3			1	1	1
21. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	22	7.17	July 02, 2012				1		1	3		4	4	1	2	3			1	1	1
22. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	23	7.19	December 31, 2012				1		1	3		4	5	1	2	3			1	1	1
23. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	24	7.16	June 22, 2013				1		1	3		4	5	1	3	3			1	1	1
24. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	26	7.13	December 31, 2013				1		1	3		4	5	2	4	3			1	1	1
25. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	28	7.03	July 01, 2014				1		1	3		4	5	2	5	3		1	1	1	1
26. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	28	7.03	December 30, 2014				1		1	3		4	5	2	5	3		1	1	1	1
27. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	28	7.03	June 30, 2015				1		1	3		4	5	2	5	3		1	1	1	1
28. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	28	7.03	December 29, 2015				1		1	3		4	5	2	5	3		1	1	1	1
29. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	29	7.06	June 28, 2016				1		1	3		5	5	2	5	3		1	1	1	1
30. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	30	7.08	December 27, 2016				1		1	3		5	6	2	5	3		1	1	1	1
31. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	33	7.04	June 27, 2017				1		1	4		5	6	2	5	4		2	1	1	1
32. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	33	7.04	January 02, 2018				1		1	4		5	6	2	5	4		2	1	1	1
33. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	36	6.95	July 03, 2018				1		1	4	1	5	6	3	5	4		2	1	1	1		1
34. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	40	6.85	January 01, 2019				1		1	4	1	5	7	4	6	4		2	1	1	1		2
35. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	41	6.81	July 02, 2019				1		1	4	1	5	7	4	6	4	1	2	1	1	1		2
36. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	41	6.81	December 31, 2019				1		1	4	1	5	7	4	6	4	1	2	1	1	1		2
37. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	45	6.77	June 30, 2020				1		1	4	1	5	8	4	7	5	2	2	1	1	1		2
38. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	46	6.76	December 29, 2020				1		1	4	1	5	8	4	7	6	2	2	1	1	1		2
39. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	47	6.73	June 29, 2021				1		1	4	1	5	8	4	7	6	3	2	1	1	1		2
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 6 (2-3/59, DC Comics)	Universal	47	6.73	December 28, 2021				1		1	4	1	5	8	4	7	6	3	2	1	1	1		2
41. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	48	6.78	June 28, 2022				1		2	4	1	5	8	4	7	6	3	2	1	1	1		2
42. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	50	6.73	December 27, 2022				1		2	4	1	5	8	5	7	6	3	2	1	2	1		2
43. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	50	6.73	June 27, 2023				1		2	4	1	5	8	5	7	6	3	2	1	2	1		2
44. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	51	6.68	December 31, 2023				1		2	4	1	5	8	5	7	6	3	2	1	3	1		2
45. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	54	6.64	August 12, 2025				1		2	4	1	5	9	5	7	6	4	2	3	2	1		2
46. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	54	6.64	August 19, 2025				1		2	4	1	5	9	5	7	6	4	2	3	2	1		2
47. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	49	6.60	August 26, 2025				1		1	4	1	5	7	5	6	6	4	2	2	2	1		2
48. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	49	6.60	September 02, 2025				1		1	4	1	5	7	5	6	6	4	2	2	2	1		2
49. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	54	6.64	September 09, 2025				1		2	4	1	5	9	5	7	6	4	2	3	2	1		2
50. Challengers of the Unknown 6 (2-3/59, DC Comics)	Universal	54	6.64	September 16, 2025				1		2	4	1	5	9	5	7	6	4	2	3	2	1		2
51. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	January 27, 2002									1
52. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	July 17, 2003									1
53. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	January 08, 2004									1
54. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	July 12, 2004									1
55. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	December 16, 2004									1
56. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	July 07, 2005									1
57. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	January 27, 2006									1
58. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	June 20, 2006									1
59. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	January 10, 2007									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
60. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	July 05, 2007									1
61. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	January 09, 2008									1
62. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	July 01, 2008									1
63. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	January 13, 2009									1
64. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	June 24, 2009									1
65. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	December 15, 2009									1
66. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	June 14, 2010									1
67. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	December 27, 2010									1
68. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	June 27, 2011									1
69. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	January 02, 2012									1
70. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	July 02, 2012									1
71. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	December 31, 2012									1
72. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	1	8.00	June 22, 2013									1
73. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	December 31, 2013									2
74. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	July 01, 2014									2
75. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	December 30, 2014									2
76. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	June 30, 2015									2
77. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	December 29, 2015									2
78. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	June 28, 2016									2
79. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	December 27, 2016									2
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
80. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	June 27, 2017									2
81. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	January 02, 2018									2
82. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	July 03, 2018									2
83. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	January 01, 2019									2
84. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	July 02, 2019									2
85. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	December 31, 2019									2
86. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	June 30, 2020									2
87. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	December 29, 2020									2
88. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	June 29, 2021									2
89. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	December 28, 2021									2
90. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	June 28, 2022									2
91. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	December 27, 2022									2
92. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	June 27, 2023									2
93. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	2	8.00	December 31, 2023									2
94. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	3	8.33	August 12, 2025							1		2
95. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	3	8.33	August 19, 2025							1		2
96. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	3	8.33	August 26, 2025							1		2
97. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	3	8.33	September 02, 2025							1		2
98. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	3	8.33	September 09, 2025							1		2
99. Challengers of the Unknown 6 (2-3/59, DC Comics)	Restored	3	8.33	September 16, 2025							1		2

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"CGC Census Analysis" is provided by Greg Holland (©2003-2025).
Data is sourced from the public CGC census (© Certified Guaranty Company, LLC.)
Used with permission of CGC since 2003. Data is from July 01, 2001 to September 16, 2025.
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