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Detective Comics #31
	DC Comics, 9/39

Gardner Fox and Jerry Siegel stories		Classic cover. 1st Batplane.
Fred Guardineer and Joe Shuster art		1st appearance of the Monk
Bob Kane cover and art		and Julie Madison.

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 31 (9/39, DC Comics)	Universal	6	5.42	July 01, 2001									1			1			2		2
2. Detective Comics 31 (9/39, DC Comics)	Universal	8	5.06	January 27, 2002									1			1			3		2		1
3. Detective Comics 31 (9/39, DC Comics)	Universal	11	4.36	July 17, 2003									1			1			3		2		2	1	1
4. Detective Comics 31 (9/39, DC Comics)	Universal	11	4.36	January 08, 2004									1			1			3		2		2	1	1
5. Detective Comics 31 (9/39, DC Comics)	Universal	12	4.50	July 12, 2004									1			1	1		3		2		2	1	1
6. Detective Comics 31 (9/39, DC Comics)	Universal	13	4.19	December 16, 2004									1			1	1		3		2		2	1	1				1
7. Detective Comics 31 (9/39, DC Comics)	Universal	14	4.18	July 07, 2005									1			1	1		3		3		2	1	1				1
8. Detective Comics 31 (9/39, DC Comics)	Universal	15	4.17	January 27, 2006									1			1	1		3		4		2	1	1				1
9. Detective Comics 31 (9/39, DC Comics)	Universal	16	4.25	June 20, 2006									1			1	1	1	3		4		2	1	1				1
10. Detective Comics 31 (9/39, DC Comics)	Universal	18	4.11	January 10, 2007									1			1	1	1	3		4	1	2	2	1				1
11. Detective Comics 31 (9/39, DC Comics)	Universal	20	4.04	July 05, 2007									1			1	1	1	4		4	1	2	2	1	1			1
12. Detective Comics 31 (9/39, DC Comics)	Universal	21	3.92	January 09, 2008									1			1	1	1	4		4	1	2	2	1	1	1		1
13. Detective Comics 31 (9/39, DC Comics)	Universal	21	3.92	July 01, 2008									1			1	1	1	4		4	1	2	2	1	1	1		1
14. Detective Comics 31 (9/39, DC Comics)	Universal	23	3.90	January 13, 2009									1		1	1	1	1	4		4	1	2	2	1	1	1		2
15. Detective Comics 31 (9/39, DC Comics)	Universal	24	3.85	June 24, 2009									1		1	1	1	1	4		4	1	2	3	1	1	1		2
16. Detective Comics 31 (9/39, DC Comics)	Universal	26	3.65	December 15, 2009									1		1	1	1	1	4		4	1	2	3	1	1	2	1	2
17. Detective Comics 31 (9/39, DC Comics)	Universal	27	3.64	June 14, 2010									1		1	1	1	1	4		4	2	2	3	1	1	2	1	2
18. Detective Comics 31 (9/39, DC Comics)	Universal	29	3.65	December 27, 2010									1		1	1	1	1	4	1	4	2	3	3	1	1	2	1	2
19. Detective Comics 31 (9/39, DC Comics)	Universal	31	3.50	June 27, 2011									1		1	1	1	1	4	1	4	2	3	3	1	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
20. Detective Comics 31 (9/39, DC Comics)	Universal	32	3.52	January 02, 2012									1		1	1	2	1	3	1	4	2	4	3	1	2	2	2	2
21. Detective Comics 31 (9/39, DC Comics)	Universal	33	3.43	July 02, 2012									1		1	1	2	1	3	1	4	2	4	3	1	2	2	2	3
22. Detective Comics 31 (9/39, DC Comics)	Universal	34	3.44	December 31, 2012									1		1	1	2	1	3	1	5	2	4	3	1	2	2	2	3
23. Detective Comics 31 (9/39, DC Comics)	Universal	35	3.50	June 22, 2013									1		1	1	2	2	3	1	5	2	4	3	1	2	2	2	3
24. Detective Comics 31 (9/39, DC Comics)	Universal	40	3.42	December 31, 2013									1		1	2	3	1	3	1	5	3	4	2	2	4	2	2	4
25. Detective Comics 31 (9/39, DC Comics)	Universal	43	3.27	July 01, 2014									1		1	2	3	1	3	1	5	3	5	2	2	4	2	2	6
26. Detective Comics 31 (9/39, DC Comics)	Universal	45	3.17	December 30, 2014									1		1	2	3	1	3	1	5	3	5	3	1	4	2	3	7
27. Detective Comics 31 (9/39, DC Comics)	Universal	46	3.13	June 30, 2015									1		1	2	3	1	3	1	5	3	5	3	1	4	3	3	7
28. Detective Comics 31 (9/39, DC Comics)	Universal	47	3.07	December 29, 2015									1		1	2	2	1	4	1	5	3	5	3	1	4	3	4	7
29. Detective Comics 31 (9/39, DC Comics)	Universal	46	2.99	June 28, 2016									1		1	1	2	1	4	1	5	3	5	3	1	4	3	4	7
30. Detective Comics 31 (9/39, DC Comics)	Universal	47	2.95	December 27, 2016									1		1	1	2	1	4	1	5	3	5	3	1	4	3	5	7
31. Detective Comics 31 (9/39, DC Comics)	Universal	49	3.03	June 27, 2017									1		1	1	3	1	4	1	6	3	5	3	1	4	3	5	7
32. Detective Comics 31 (9/39, DC Comics)	Universal	49	3.13	January 02, 2018									1		1	1	3	1	5	1	6	3	5	3	1	4	3	5	6
33. Detective Comics 31 (9/39, DC Comics)	Universal	49	3.13	July 03, 2018									1		1	1	3	1	5	1	6	3	5	3	1	4	3	5	6
34. Detective Comics 31 (9/39, DC Comics)	Universal	49	3.13	January 01, 2019									1		1	1	3	1	5	1	6	3	5	3	1	4	3	5	6
35. Detective Comics 31 (9/39, DC Comics)	Universal	50	3.09	July 02, 2019									1		1	1	3	1	5	1	6	3	5	3	1	4	4	5	6
36. Detective Comics 31 (9/39, DC Comics)	Universal	51	3.07	December 31, 2019									1		1	1	3	1	5	1	6	3	5	3	1	4	6	4	6
37. Detective Comics 31 (9/39, DC Comics)	Universal	54	3.02	June 30, 2020									1		1	1	3	1	5	2	6	3	5	3	1	4	7	4	7
38. Detective Comics 31 (9/39, DC Comics)	Universal	55	3.00	December 29, 2020									1		1	1	3	1	5	2	6	3	5	3	1	5	7	4	7
39. Detective Comics 31 (9/39, DC Comics)	Universal	55	2.94	June 29, 2021									1		1	1	2	1	5	2	6	3	5	4	1	5	7	4	7
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 31 (9/39, DC Comics)	Universal	56	3.00	December 28, 2021									1		1	2	2	1	5	2	6	3	5	4	1	5	7	4	7
41. Detective Comics 31 (9/39, DC Comics)	Universal	58	2.96	June 28, 2022									1		1	2	2	1	5	2	6	3	5	4	2	5	8	4	7
42. Detective Comics 31 (9/39, DC Comics)	Universal	59	2.93	December 27, 2022									1		1	2	2	1	5	2	6	3	5	4	2	5	9	4	7
43. Detective Comics 31 (9/39, DC Comics)	Universal	60	2.92	June 27, 2023									1		1	2	2	1	5	2	6	3	5	4	3	5	9	4	7
44. Detective Comics 31 (9/39, DC Comics)	Universal	61	2.93	December 31, 2023									1		1	2	2	1	5	2	7	3	5	4	3	5	9	4	7
45. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	December 27, 2010																									1
46. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	June 27, 2011																									1
47. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	January 02, 2012																									1
48. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	July 02, 2012																									1
49. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	December 31, 2012																									1
50. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	June 22, 2013																									1
51. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	December 31, 2013																									1
52. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	July 01, 2014																									1
53. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	December 30, 2014																									1
54. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	June 30, 2015																									1
55. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	December 29, 2015																									1
56. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	June 28, 2016																									1
57. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	December 27, 2016																									1
58. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	June 27, 2017																									1
59. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	January 02, 2018																									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 31 (9/39, DC Comics)	Signature	1	0.50	July 03, 2018																									1
61. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	January 01, 2019																									1
62. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	July 02, 2019																									1
63. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	December 31, 2019																									1
64. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	June 30, 2020																									1
65. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	December 29, 2020																									1
66. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	June 29, 2021																									1
67. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	December 28, 2021																									1
68. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	June 28, 2022																									1
69. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	December 27, 2022																									1
70. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	June 27, 2023																									1
71. Detective Comics 31 (9/39, DC Comics)	Signature	1	0.50	December 31, 2023																									1
72. Detective Comics 31 (9/39, DC Comics)	Restored	4	6.88	July 01, 2001									1		2			1
73. Detective Comics 31 (9/39, DC Comics)	Restored	5	7.20	January 27, 2002									2	1	1			1
74. Detective Comics 31 (9/39, DC Comics)	Restored	8	7.21	July 17, 2003						1		1	2	1	1			1			1
75. Detective Comics 31 (9/39, DC Comics)	Restored	10	7.22	January 08, 2004						1		2	2	1	1		1	1			1
76. Detective Comics 31 (9/39, DC Comics)	Restored	10	7.22	July 12, 2004						1		2	2	1	1		1	1			1
77. Detective Comics 31 (9/39, DC Comics)	Restored	10	7.22	December 16, 2004						1		2	2	1	1		1	1			1
78. Detective Comics 31 (9/39, DC Comics)	Restored	10	7.22	July 07, 2005						1		2	2	1	1		1	1			1
79. Detective Comics 31 (9/39, DC Comics)	Restored	10	7.22	January 27, 2006						1		2	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
80. Detective Comics 31 (9/39, DC Comics)	Restored	11	7.29	June 20, 2006						1		2	3	1	1		1	1			1
81. Detective Comics 31 (9/39, DC Comics)	Restored	14	6.98	January 10, 2007						1		2	3	2	1		1	2		1	1
82. Detective Comics 31 (9/39, DC Comics)	Restored	16	6.92	July 05, 2007						1		2	3	2	1	2	1	2		1	1
83. Detective Comics 31 (9/39, DC Comics)	Restored	17	6.66	January 09, 2008						1		2	3	2	1	2	1	2		1	1			1
84. Detective Comics 31 (9/39, DC Comics)	Restored	18	6.65	July 01, 2008						1		2	3	2	1	3	1	2		1	1			1
85. Detective Comics 31 (9/39, DC Comics)	Restored	19	6.33	January 13, 2009						1		2	3	2	1	3	1	2		1	1			1					1
86. Detective Comics 31 (9/39, DC Comics)	Restored	20	6.29	June 24, 2009						1		2	3	2	1	3	1	3		1	1			1					1
87. Detective Comics 31 (9/39, DC Comics)	Restored	20	6.49	December 15, 2009						1		2	3	2	1	3	1	3		2	1			1
88. Detective Comics 31 (9/39, DC Comics)	Restored	21	6.58	June 14, 2010						1		3	3	2	1	3	1	3		2	1			1
89. Detective Comics 31 (9/39, DC Comics)	Restored	21	6.58	December 27, 2010						1		3	3	2	1	3	1	3		2	1			1
90. Detective Comics 31 (9/39, DC Comics)	Restored	22	6.62	June 27, 2011						1		3	3	2	1	3	3	3		1	1			1
91. Detective Comics 31 (9/39, DC Comics)	Restored	25	6.71	January 02, 2012						1		4	3	3	1	3	4	3		1	1			1
92. Detective Comics 31 (9/39, DC Comics)	Restored	28	6.56	July 02, 2012						1		4	4	3	1	3	4	3		1	3			1
93. Detective Comics 31 (9/39, DC Comics)	Restored	28	6.58	December 31, 2012						1		4	4	3	1	3	4	3		2	2			1
94. Detective Comics 31 (9/39, DC Comics)	Restored	28	6.58	June 22, 2013						1		4	4	3	1	3	4	3		2	2			1
95. Detective Comics 31 (9/39, DC Comics)	Restored	28	6.58	December 31, 2013						1		4	4	3	1	3	4	3		2	2			1
96. Detective Comics 31 (9/39, DC Comics)	Restored	28	6.58	July 01, 2014						1		4	4	3	1	3	4	3		2	2			1
97. Detective Comics 31 (9/39, DC Comics)	Restored	28	6.58	December 30, 2014						1		4	4	3	1	3	4	3		2	2			1
98. Detective Comics 31 (9/39, DC Comics)	Restored	27	6.62	June 30, 2015						1		4	4	3	1	3	4	2		2	2			1
99. Detective Comics 31 (9/39, DC Comics)	Restored	25	6.46	December 29, 2015								4	3	3	1	3	4	2		2	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
100. Detective Comics 31 (9/39, DC Comics)	Restored	25	6.46	June 28, 2016								4	3	3	1	3	4	2		2	2			1
101. Detective Comics 31 (9/39, DC Comics)	Restored	25	6.46	December 27, 2016								4	3	3	1	3	4	2		2	2			1
102. Detective Comics 31 (9/39, DC Comics)	Restored	25	6.46	June 27, 2017								4	3	3	1	3	4	2		2	2			1
103. Detective Comics 31 (9/39, DC Comics)	Restored	25	6.46	January 02, 2018								4	3	3	1	3	4	2		2	2			1
104. Detective Comics 31 (9/39, DC Comics)	Restored	36	6.01	July 03, 2018						1		4	4	3	2	3	6	3	1	2	2		1	2		1		1
105. Detective Comics 31 (9/39, DC Comics)	Restored	36	6.01	January 01, 2019						1		4	4	3	2	3	6	3	1	2	2		1	2		1		1
106. Detective Comics 31 (9/39, DC Comics)	Restored	37	6.01	July 02, 2019						1		4	4	3	2	3	7	3	1	2	2		1	2		1		1
107. Detective Comics 31 (9/39, DC Comics)	Restored	37	6.01	December 31, 2019						1		4	4	3	2	3	7	3	1	2	2		1	2		1		1
108. Detective Comics 31 (9/39, DC Comics)	Restored	36	6.17	June 30, 2020						1		4	4	3	2	3	8	2	1	2	2		1	2		1
109. Detective Comics 31 (9/39, DC Comics)	Restored	36	6.17	December 29, 2020						1		4	4	3	2	3	8	2	1	2	2		1	2		1
110. Detective Comics 31 (9/39, DC Comics)	Restored	36	6.17	June 29, 2021						1		4	4	3	2	3	8	2	1	2	2		1	2		1
111. Detective Comics 31 (9/39, DC Comics)	Restored	36	6.17	December 28, 2021						1		4	4	3	2	3	8	2	1	2	2		1	2		1
112. Detective Comics 31 (9/39, DC Comics)	Restored	36	6.17	June 28, 2022						1		4	4	3	2	3	8	2	1	2	2		1	2		1
113. Detective Comics 31 (9/39, DC Comics)	Restored	36	6.17	December 27, 2022						1		4	4	3	2	3	8	2	1	2	2		1	2		1
114. Detective Comics 31 (9/39, DC Comics)	Restored	37	6.16	June 27, 2023						1		4	4	3	2	3	9	2	1	2	2		1	2		1
115. Detective Comics 31 (9/39, DC Comics)	Restored	39	5.99	December 31, 2023						1		4	4	3	2	3	9	2	1	2	3		1	2		2
116. Detective Comics 31 (9/39, DC Comics)	Qualified	1	0.50	June 27, 2017																									1
117. Detective Comics 31 (9/39, DC Comics)	Qualified	1	0.50	January 02, 2018																									1
118. Detective Comics 31 (9/39, DC Comics)	Qualified	1	0.50	July 03, 2018																									1
119. Detective Comics 31 (9/39, DC Comics)	Qualified	1	0.50	January 01, 2019																									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
120. Detective Comics 31 (9/39, DC Comics)	Qualified	1	0.50	July 02, 2019																									1
121. Detective Comics 31 (9/39, DC Comics)	Qualified	1	0.50	December 31, 2019																									1
122. Detective Comics 31 (9/39, DC Comics)	Qualified	1	0.50	June 30, 2020																									1
123. Detective Comics 31 (9/39, DC Comics)	Qualified	1	0.50	December 29, 2020																									1
124. Detective Comics 31 (9/39, DC Comics)	Qualified	1	0.50	June 29, 2021																									1
125. Detective Comics 31 (9/39, DC Comics)	Qualified	1	1.50	June 28, 2022																							1

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Used with permission of CGC since 2003. Data is from July 01, 2001 to September 16, 2025.
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