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Challengers of the Unknown #10
	DC Comics, 10-11/59

Bob Brown cover and art

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 10 (10-11/59, DC Comics)	Universal	1	8.50	July 17, 2003								1
2. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	1	8.50	January 08, 2004								1
3. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	1	8.50	July 12, 2004								1
4. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	1	8.50	December 16, 2004								1
5. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	2	8.25	July 07, 2005								1	1
6. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	2	8.25	January 27, 2006								1	1
7. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	3	8.33	June 20, 2006								2	1
8. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	3	8.33	January 10, 2007								2	1
9. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	3	8.33	July 05, 2007								2	1
10. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	4	7.88	January 09, 2008								2	1			1
11. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	4	8.00	July 01, 2008								2	1		1
12. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	4	8.00	January 13, 2009								2	1		1
13. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	4	8.00	June 24, 2009								2	1		1
14. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	5	7.40	December 15, 2009								2	1		1				1
15. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	5	7.40	June 14, 2010								2	1		1				1
16. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	5	7.40	December 27, 2010								2	1		1				1
17. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	5	7.40	June 27, 2011								2	1		1				1
18. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	5	7.40	January 02, 2012								2	1		1				1
19. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	7	7.39	July 02, 2012						1		2	1		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 10 (10-11/59, DC Comics)	Universal	8	7.28	December 31, 2012						1		2	1		1	1		1	1
21. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	8	7.28	June 22, 2013						1		2	1		1	1		1	1
22. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	8	7.28	December 31, 2013						1		2	1		1	1		1	1
23. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	9	7.24	July 01, 2014						1		2	1		2	1		1	1
24. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	9	7.24	December 30, 2014						1		2	1		2	1		1	1
25. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	9	7.24	June 30, 2015						1		2	1		2	1		1	1
26. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	10	7.37	December 29, 2015						1		3	1		2	1		1	1
27. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	10	7.37	June 28, 2016						1		3	1		2	1		1	1
28. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	11	7.15	December 27, 2016						1		3	1		2	1		1	2
29. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	11	7.15	June 27, 2017						1		3	1		2	1		1	2
30. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	11	7.15	January 02, 2018						1		3	1		2	1		1	2
31. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	13	7.17	July 03, 2018						1		3	1	1	3	1		1	2
32. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	14	7.12	January 01, 2019						1		3	1	1	3	2		1	2
33. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	15	6.91	July 02, 2019						1		3	1	1	3	2		1	2		1
34. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	16	6.73	December 31, 2019						1		3	1	1	3	2		1	2		2
35. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	17	6.75	June 30, 2020						1		3	1	1	4	2		1	2		2
36. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	17	6.75	December 29, 2020						1		3	1	1	4	2		1	2		2
37. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	17	6.75	June 29, 2021						1		3	1	1	4	2		1	2		2
38. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	18	6.68	December 28, 2021						1		3	1	1	4	2		2	2		2
39. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	18	6.68	June 28, 2022						1		3	1	1	4	2		2	2		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 10 (10-11/59, DC Comics)	Universal	21	6.80	December 27, 2022						1		4	2	1	4	2	1	2	2		2
41. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	22	6.76	June 27, 2023						1		4	2	1	4	2	2	2	2		2
42. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	22	6.76	December 31, 2023						1		4	2	1	4	2	2	2	2		2
43. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	24	6.53	June 17, 2025						1		4	2	1	4	2	2	2	2	1	2	1
44. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	24	6.53	June 24, 2025						1		4	2	1	4	2	2	2	2	1	2	1
45. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	24	6.53	July 01, 2025						1		4	2	1	4	2	2	2	2	1	2	1
46. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	24	6.53	July 15, 2025						1		4	2	1	4	2	2	2	2	1	2	1
47. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	24	6.53	July 22, 2025						1		4	2	1	4	2	2	2	2	1	2	1
48. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	24	6.53	July 29, 2025						1		4	2	1	4	2	2	2	2	1	2	1
49. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	24	6.53	August 05, 2025						1		4	2	1	4	2	2	2	2	1	2	1
50. Challengers of the Unknown 10 (10-11/59, DC Comics)	Universal	24	6.53	August 12, 2025						1		4	2	1	4	2	2	2	2	1	2	1

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