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Detective Comics #520
	DC Comics, 11/82

Gerry Conway story		Hugo Strange & Dr. Thirteen appearance.
Don Newton & Alfredo Alcala art		16 page "Masters of the Universe"
Jim Aparo cover		preview with Superman appearance.

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. Detective Comics 520 (11/82, DC Comics)	Universal	2	9.60	July 17, 2003				2
2. Detective Comics 520 (11/82, DC Comics)	Universal	2	9.60	January 08, 2004				2
3. Detective Comics 520 (11/82, DC Comics)	Universal	2	9.60	July 12, 2004				2
4. Detective Comics 520 (11/82, DC Comics)	Universal	2	9.60	December 16, 2004				2
5. Detective Comics 520 (11/82, DC Comics)	Universal	2	9.60	July 07, 2005				2
6. Detective Comics 520 (11/82, DC Comics)	Universal	3	9.53	January 27, 2006				2	1
7. Detective Comics 520 (11/82, DC Comics)	Universal	4	9.55	June 20, 2006				3	1
8. Detective Comics 520 (11/82, DC Comics)	Universal	4	9.55	January 10, 2007				3	1
9. Detective Comics 520 (11/82, DC Comics)	Universal	4	9.55	July 05, 2007				3	1
10. Detective Comics 520 (11/82, DC Comics)	Universal	4	9.55	January 09, 2008				3	1
11. Detective Comics 520 (11/82, DC Comics)	Universal	4	9.55	July 01, 2008				3	1
12. Detective Comics 520 (11/82, DC Comics)	Universal	4	9.55	January 13, 2009				3	1
13. Detective Comics 520 (11/82, DC Comics)	Universal	5	9.60	June 24, 2009			1	3	1
14. Detective Comics 520 (11/82, DC Comics)	Universal	9	9.28	December 15, 2009			2	5	1							1
15. Detective Comics 520 (11/82, DC Comics)	Universal	10	9.31	June 14, 2010			2	6	1							1
16. Detective Comics 520 (11/82, DC Comics)	Universal	11	9.35	December 27, 2010			3	6	1							1
17. Detective Comics 520 (11/82, DC Comics)	Universal	11	9.35	June 27, 2011			3	6	1							1
18. Detective Comics 520 (11/82, DC Comics)	Universal	11	9.35	January 02, 2012			3	6	1							1
19. Detective Comics 520 (11/82, DC Comics)	Universal	11	9.35	July 02, 2012			3	6	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. Detective Comics 520 (11/82, DC Comics)	Universal	12	9.39	December 31, 2012			4	6	1							1
21. Detective Comics 520 (11/82, DC Comics)	Universal	13	9.42	June 22, 2013			5	6	1							1
22. Detective Comics 520 (11/82, DC Comics)	Universal	13	9.42	December 31, 2013			5	6	1							1
23. Detective Comics 520 (11/82, DC Comics)	Universal	14	9.45	July 01, 2014			6	6	1							1
24. Detective Comics 520 (11/82, DC Comics)	Universal	14	9.45	December 30, 2014			6	6	1							1
25. Detective Comics 520 (11/82, DC Comics)	Universal	14	9.45	June 30, 2015			6	6	1							1
26. Detective Comics 520 (11/82, DC Comics)	Universal	15	9.45	December 29, 2015			6	6	2							1
27. Detective Comics 520 (11/82, DC Comics)	Universal	17	9.46	June 28, 2016			7	6	3							1
28. Detective Comics 520 (11/82, DC Comics)	Universal	18	9.47	December 27, 2016			7	7	3							1
29. Detective Comics 520 (11/82, DC Comics)	Universal	20	9.50	June 27, 2017			8	8	3							1
30. Detective Comics 520 (11/82, DC Comics)	Universal	23	9.44	January 02, 2018			9	8	4				1			1
31. Detective Comics 520 (11/82, DC Comics)	Universal	24	9.45	July 03, 2018			10	8	4				1			1
32. Detective Comics 520 (11/82, DC Comics)	Universal	25	9.24	January 01, 2019			10	8	4				1			1					1
33. Detective Comics 520 (11/82, DC Comics)	Universal	25	9.24	July 02, 2019			10	8	4				1			1					1
34. Detective Comics 520 (11/82, DC Comics)	Universal	27	9.27	December 31, 2019			11	9	4				1			1					1
35. Detective Comics 520 (11/82, DC Comics)	Universal	28	9.21	June 30, 2020			11	9	4				1	1		1					1
36. Detective Comics 520 (11/82, DC Comics)	Universal	32	9.19	December 29, 2020			11	11	4		1		2	1		1					1
37. Detective Comics 520 (11/82, DC Comics)	Universal	34	9.22	June 29, 2021			12	12	4		1		2	1		1					1
38. Detective Comics 520 (11/82, DC Comics)	Universal	37	9.17	December 28, 2021			12	12	4		2	2	2	1		1					1
39. Detective Comics 520 (11/82, DC Comics)	Universal	39	9.19	June 28, 2022			13	12	5		2	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
40. Detective Comics 520 (11/82, DC Comics)	Universal	42	9.23	December 27, 2022			15	13	5		2	2	2	1		1					1
41. Detective Comics 520 (11/82, DC Comics)	Universal	44	9.21	June 27, 2023			15	13	6		2	2	3	1		1					1
42. Detective Comics 520 (11/82, DC Comics)	Universal	45	9.22	December 31, 2023			16	13	6		2	2	3	1		1					1
43. Detective Comics 520 (11/82, DC Comics)	Universal	58	9.27	June 24, 2025			22	15	8	1	3	2	3	2		1					1
44. Detective Comics 520 (11/82, DC Comics)	Universal	58	9.27	July 01, 2025			22	15	8	1	3	2	3	2		1					1
45. Detective Comics 520 (11/82, DC Comics)	Universal	58	9.27	July 15, 2025			22	15	8	1	3	2	3	2		1					1
46. Detective Comics 520 (11/82, DC Comics)	Universal	59	9.27	July 22, 2025			22	15	9	1	3	2	3	2		1					1
47. Detective Comics 520 (11/82, DC Comics)	Universal	59	9.27	July 29, 2025			22	15	9	1	3	2	3	2		1					1
48. Detective Comics 520 (11/82, DC Comics)	Universal	59	9.27	August 05, 2025			22	15	9	1	3	2	3	2		1					1
49. Detective Comics 520 (11/82, DC Comics)	Universal	60	9.27	August 12, 2025			22	15	10	1	3	2	3	2		1					1
50. Detective Comics 520 (11/82, DC Comics)	Universal	60	9.27	August 19, 2025			22	15	10	1	3	2	3	2		1					1

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