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Challenge of the Unknown #6
	Ace Periodicals, 9/50

Mike Sekowsky, Lin Streeter		Only issue. Numbering continued
and Ken Rice art		from Love Experiences #5
		Decapitated head 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. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	July 01, 2001								1
2. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	January 27, 2002								1
3. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	July 17, 2003								1
4. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	January 08, 2004								1
5. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	July 12, 2004								1
6. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	December 16, 2004								1
7. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	July 07, 2005								1
8. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	January 27, 2006								1
9. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	June 20, 2006								1
10. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	January 10, 2007								1
11. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	July 05, 2007								1
12. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	January 09, 2008								1
13. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	July 01, 2008								1
14. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	January 13, 2009								1
15. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	June 24, 2009								1
16. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	December 15, 2009								1
17. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	1	8.50	June 14, 2010								1
18. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	2	6.50	December 27, 2010								1								1
19. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	2	6.50	June 27, 2011								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. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	2	6.50	January 02, 2012								1								1
21. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	2	6.50	July 02, 2012								1								1
22. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	3	7.00	December 31, 2012								1	1							1
23. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	4	6.50	June 22, 2013								1	1						1	1
24. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	4	6.50	December 31, 2013								1	1						1	1
25. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	5	6.60	July 01, 2014								1	1		1				1	1
26. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	5	6.60	December 30, 2014								1	1		1				1	1
27. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	5	6.60	June 30, 2015								1	1		1				1	1
28. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	5	6.60	December 29, 2015								1	1		1				1	1
29. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	5	6.60	June 28, 2016								1	1		1				1	1
30. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	7	6.64	December 27, 2016								1	1	1	1		1		1	1
31. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	7	6.64	June 27, 2017								1	1	1	1		1		1	1
32. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	7	6.64	January 02, 2018								1	1	1	1		1		1	1
33. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	9	6.22	July 03, 2018								1	1	1	1	1	1		1	1			1
34. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	9	6.22	January 01, 2019								1	1	1	1	1	1		1	1			1
35. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	10	6.10	July 02, 2019								1	1	1	1	1	1		2	1			1
36. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	15	5.47	December 31, 2019								1	1	1	1	1	1	1	2	3		1	2
37. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	15	5.47	June 30, 2020								1	1	1	1	1	1	1	2	3		1	2
38. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	15	5.47	December 29, 2020								1	1	1	1	1	1	1	2	3		1	2
39. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	16	5.50	June 29, 2021								1	1	1	1	1	2	1	2	3		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. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	16	5.50	December 28, 2021								1	1	1	1	1	2	1	2	3		1	2
41. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	16	5.50	June 28, 2022								1	1	1	1	1	2	1	2	3		1	2
42. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	18	5.44	December 27, 2022								1	1	1	1	1	2	2	2	4		1	2
43. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	18	5.44	June 27, 2023								1	1	1	1	1	2	2	2	4		1	2
44. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	21	5.19	December 31, 2023								1	1	1	1	1	2	3	2	4		2	2		1
45. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	26	5.02	June 17, 2025								1	1	1	2	1	2	3	2	5	1	3	2	1	1
46. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	26	5.02	June 24, 2025								1	1	1	2	1	2	3	2	5	1	3	2	1	1
47. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	26	5.02	July 01, 2025								1	1	1	2	1	2	3	2	5	1	3	2	1	1
48. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	26	5.02	July 15, 2025								1	1	1	2	1	2	3	2	5	1	3	2	1	1
49. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	26	5.02	July 22, 2025								1	1	1	2	1	2	3	2	5	1	3	2	1	1
50. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	26	5.02	July 29, 2025								1	1	1	2	1	2	3	2	5	1	3	2	1	1
51. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Universal	26	5.02	August 05, 2025								1	1	1	2	1	2	3	2	5	1	3	2	1	1
52. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	1	3.50	July 03, 2018																		1
53. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	1	3.50	January 01, 2019																		1
54. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	1	3.50	July 02, 2019																		1
55. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	2	3.00	December 31, 2019																		1		1
56. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	2	3.00	June 30, 2020																		1		1
57. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	2	3.00	December 29, 2020																		1		1
58. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	2	3.00	June 29, 2021																		1		1
59. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	2	3.00	December 28, 2021																		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
60. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	2	3.00	June 28, 2022																		1		1
61. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	3	3.17	December 27, 2022																		2		1
62. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	3	3.17	June 27, 2023																		2		1
63. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	3	3.17	December 31, 2023																		2		1
64. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	3	3.17	June 17, 2025																		2		1
65. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	3	3.17	June 24, 2025																		2		1
66. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	3	3.17	July 01, 2025																		2		1
67. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	3	3.17	July 15, 2025																		2		1
68. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	3	3.17	July 22, 2025																		2		1
69. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	3	3.17	July 29, 2025																		2		1
70. Challenge of the Unknown 6 (9/50, Ace Periodicals)	Restored	3	3.17	August 05, 2025																		2		1

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