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Detective Comics #831
	DC Comics, 6/07

Paul Dini story		Harley Quinn appearance.
Don Kramer & Wayne Faucher art		Sketch cover.
Simone Bianchi 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. Detective Comics 831 (6/07, DC Comics)	Universal	1	9.80	July 05, 2007			1
2. Detective Comics 831 (6/07, DC Comics)	Universal	1	9.80	January 09, 2008			1
3. Detective Comics 831 (6/07, DC Comics)	Universal	1	9.80	July 01, 2008			1
4. Detective Comics 831 (6/07, DC Comics)	Universal	1	9.80	January 13, 2009			1
5. Detective Comics 831 (6/07, DC Comics)	Universal	1	9.80	June 24, 2009			1
6. Detective Comics 831 (6/07, DC Comics)	Universal	1	9.80	December 15, 2009			1
7. Detective Comics 831 (6/07, DC Comics)	Universal	1	9.80	June 14, 2010			1
8. Detective Comics 831 (6/07, DC Comics)	Universal	1	9.80	December 27, 2010			1
9. Detective Comics 831 (6/07, DC Comics)	Universal	2	9.80	June 27, 2011			2
10. Detective Comics 831 (6/07, DC Comics)	Universal	2	9.80	January 02, 2012			2
11. Detective Comics 831 (6/07, DC Comics)	Universal	2	9.80	July 02, 2012			2
12. Detective Comics 831 (6/07, DC Comics)	Universal	2	9.80	December 31, 2012			2
13. Detective Comics 831 (6/07, DC Comics)	Universal	2	9.80	June 22, 2013			2
14. Detective Comics 831 (6/07, DC Comics)	Universal	2	9.80	December 31, 2013			2
15. Detective Comics 831 (6/07, DC Comics)	Universal	2	9.80	July 01, 2014			2
16. Detective Comics 831 (6/07, DC Comics)	Universal	2	9.80	December 30, 2014			2
17. Detective Comics 831 (6/07, DC Comics)	Universal	6	9.80	June 30, 2015			6
18. Detective Comics 831 (6/07, DC Comics)	Universal	9	9.78	December 29, 2015			8	1
19. Detective Comics 831 (6/07, DC Comics)	Universal	11	9.78	June 28, 2016			10	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 831 (6/07, DC Comics)	Universal	15	9.77	December 27, 2016			13	2
21. Detective Comics 831 (6/07, DC Comics)	Universal	23	9.74	June 27, 2017			18	3	2
22. Detective Comics 831 (6/07, DC Comics)	Universal	27	9.72	January 02, 2018			19	5	3
23. Detective Comics 831 (6/07, DC Comics)	Universal	32	9.64	July 03, 2018			22	5	3	1				1
24. Detective Comics 831 (6/07, DC Comics)	Universal	40	9.66	January 01, 2019			29	5	4	1				1
25. Detective Comics 831 (6/07, DC Comics)	Universal	48	9.65	July 02, 2019			31	9	5	2				1
26. Detective Comics 831 (6/07, DC Comics)	Universal	55	9.66	December 31, 2019			35	12	5	2				1
27. Detective Comics 831 (6/07, DC Comics)	Universal	57	9.66	June 30, 2020			37	12	5	2				1
28. Detective Comics 831 (6/07, DC Comics)	Universal	65	9.68	December 29, 2020			44	13	5	2				1
29. Detective Comics 831 (6/07, DC Comics)	Universal	69	9.67	June 29, 2021			46	14	5	3				1
30. Detective Comics 831 (6/07, DC Comics)	Universal	70	9.67	December 28, 2021			47	14	5	3				1
31. Detective Comics 831 (6/07, DC Comics)	Universal	73	9.68	June 28, 2022			49	15	5	3				1
32. Detective Comics 831 (6/07, DC Comics)	Universal	76	9.67	December 27, 2022			50	16	6	3				1
33. Detective Comics 831 (6/07, DC Comics)	Universal	78	9.68	June 27, 2023			52	16	6	3				1
34. Detective Comics 831 (6/07, DC Comics)	Universal	81	9.68	December 31, 2023			53	18	6	3				1
35. Detective Comics 831 (6/07, DC Comics)	Universal	86	9.68	June 24, 2025			57	19	6	3				1
36. Detective Comics 831 (6/07, DC Comics)	Universal	86	9.68	July 01, 2025			57	19	6	3				1
37. Detective Comics 831 (6/07, DC Comics)	Universal	86	9.68	July 15, 2025			57	19	6	3				1
38. Detective Comics 831 (6/07, DC Comics)	Universal	87	9.67	July 22, 2025			57	19	6	3	1			1
39. Detective Comics 831 (6/07, DC Comics)	Universal	87	9.67	July 29, 2025			57	19	6	3	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 831 (6/07, DC Comics)	Universal	87	9.67	August 05, 2025			57	19	6	3	1			1
41. Detective Comics 831 (6/07, DC Comics)	Universal	87	9.67	August 12, 2025			57	19	6	3	1			1
42. Detective Comics 831 (6/07, DC Comics)	Universal	87	9.67	August 19, 2025			57	19	6	3	1			1
43. Detective Comics 831 (6/07, DC Comics)	Signature	1	9.80	June 30, 2015			1
44. Detective Comics 831 (6/07, DC Comics)	Signature	1	9.80	December 29, 2015			1
45. Detective Comics 831 (6/07, DC Comics)	Signature	1	9.80	June 28, 2016			1
46. Detective Comics 831 (6/07, DC Comics)	Signature	2	9.70	December 27, 2016			1	1
47. Detective Comics 831 (6/07, DC Comics)	Signature	2	9.70	June 27, 2017			1	1
48. Detective Comics 831 (6/07, DC Comics)	Signature	2	9.70	January 02, 2018			1	1
49. Detective Comics 831 (6/07, DC Comics)	Signature	2	9.70	July 03, 2018			1	1
50. Detective Comics 831 (6/07, DC Comics)	Signature	2	9.70	January 01, 2019			1	1
51. Detective Comics 831 (6/07, DC Comics)	Signature	2	9.70	July 02, 2019			1	1
52. Detective Comics 831 (6/07, DC Comics)	Signature	2	9.70	December 31, 2019			1	1
53. Detective Comics 831 (6/07, DC Comics)	Signature	2	9.70	June 30, 2020			1	1
54. Detective Comics 831 (6/07, DC Comics)	Signature	2	9.70	December 29, 2020			1	1
55. Detective Comics 831 (6/07, DC Comics)	Signature	2	9.70	June 29, 2021			1	1
56. Detective Comics 831 (6/07, DC Comics)	Signature	2	9.70	December 28, 2021			1	1
57. Detective Comics 831 (6/07, DC Comics)	Signature	2	9.70	June 28, 2022			1	1
58. Detective Comics 831 (6/07, DC Comics)	Signature	4	9.70	December 27, 2022			2	2
59. Detective Comics 831 (6/07, DC Comics)	Signature	7	9.77	June 27, 2023			6	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. Detective Comics 831 (6/07, DC Comics)	Signature	7	9.77	December 31, 2023			6	1
61. Detective Comics 831 (6/07, DC Comics)	Signature	8	9.78	June 24, 2025			7	1
62. Detective Comics 831 (6/07, DC Comics)	Signature	8	9.78	July 01, 2025			7	1
63. Detective Comics 831 (6/07, DC Comics)	Signature	8	9.78	July 15, 2025			7	1
64. Detective Comics 831 (6/07, DC Comics)	Signature	8	9.78	July 22, 2025			7	1
65. Detective Comics 831 (6/07, DC Comics)	Signature	8	9.78	July 29, 2025			7	1
66. Detective Comics 831 (6/07, DC Comics)	Signature	8	9.78	August 05, 2025			7	1
67. Detective Comics 831 (6/07, DC Comics)	Signature	8	9.78	August 12, 2025			7	1
68. Detective Comics 831 (6/07, DC Comics)	Signature	8	9.78	August 19, 2025			7	1

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