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Challengers of the Unknown #57
	DC Comics, 8-9/67

Arnold Drake story
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 57 (8-9/67, DC Comics)	Universal	1	8.00	July 17, 2003									1
2. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	January 08, 2004									1
3. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	July 12, 2004									1
4. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	December 16, 2004									1
5. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	July 07, 2005									1
6. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	January 27, 2006									1
7. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	June 20, 2006									1
8. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	January 10, 2007									1
9. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	July 05, 2007									1
10. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	January 09, 2008									1
11. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	July 01, 2008									1
12. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	January 13, 2009									1
13. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	June 24, 2009									1
14. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	December 15, 2009									1
15. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	June 14, 2010									1
16. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	1	8.00	December 27, 2010									1
17. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	2	8.60	June 27, 2011						1			1
18. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	3	8.87	January 02, 2012					1	1			1
19. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	4	8.95	July 02, 2012					1	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 57 (8-9/67, DC Comics)	Universal	4	8.95	December 31, 2012					1	2			1
21. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	5	9.04	June 22, 2013					2	2			1
22. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	7	9.20	December 31, 2013				2	2	2			1
23. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	7	9.20	July 01, 2014				2	2	2			1
24. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	7	9.20	December 30, 2014				2	2	2			1
25. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	8	8.99	June 30, 2015				2	2	2			1	1
26. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	8	8.99	December 29, 2015				2	2	2			1	1
27. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	9	8.99	June 28, 2016				2	2	2	1		1	1
28. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	9	8.99	December 27, 2016				2	2	2	1		1	1
29. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	9	8.99	June 27, 2017				2	2	2	1		1	1
30. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	9	8.99	January 02, 2018				2	2	2	1		1	1
31. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	10	8.44	July 03, 2018				2	2	2	1		1	1								1
32. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	10	8.44	January 01, 2019				2	2	2	1		1	1								1
33. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	10	8.44	July 02, 2019				2	2	2	1		1	1								1
34. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	10	8.44	December 31, 2019				2	2	2	1		1	1								1
35. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	10	8.44	June 30, 2020				2	2	2	1		1	1								1
36. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	10	8.44	December 29, 2020				2	2	2	1		1	1								1
37. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	10	8.44	June 29, 2021				2	2	2	1		1	1								1
38. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	11	8.53	December 28, 2021				2	3	2	1		1	1								1
39. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	12	8.36	June 28, 2022				2	3	2	1		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
40. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	12	8.36	December 27, 2022				2	3	2	1		1	1		1						1
41. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	13	8.33	June 27, 2023				2	3	2	1		2	1		1						1
42. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	14	8.42	December 31, 2023				3	3	2	1		2	1		1						1
43. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	14	8.44	June 17, 2025			1	2	3	2	1		2	1		1						1
44. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	14	8.44	June 24, 2025			1	2	3	2	1		2	1		1						1
45. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	14	8.44	July 01, 2025			1	2	3	2	1		2	1		1						1
46. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	14	8.44	July 15, 2025			1	2	3	2	1		2	1		1						1
47. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	14	8.44	July 22, 2025			1	2	3	2	1		2	1		1						1
48. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	14	8.44	July 29, 2025			1	2	3	2	1		2	1		1						1
49. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	14	8.44	August 05, 2025			1	2	3	2	1		2	1		1						1
50. Challengers of the Unknown 57 (8-9/67, DC Comics)	Universal	15	8.50	August 12, 2025			1	2	4	2	1		2	1		1						1

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