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Detective Comics #170
	DC Comics, 4/51

Lew Sayre Schwartz, Frank Bolle,		Full page ad for Mystery in Space #1
Bruno Premiani and Dan Barry art
Win Mortimer 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 170 (4/51, DC Comics)	Universal	2	9.40	July 01, 2001				1		1
2. Detective Comics 170 (4/51, DC Comics)	Universal	2	9.40	January 27, 2002				1		1
3. Detective Comics 170 (4/51, DC Comics)	Universal	2	9.40	July 17, 2003				1		1
4. Detective Comics 170 (4/51, DC Comics)	Universal	2	9.40	January 08, 2004				1		1
5. Detective Comics 170 (4/51, DC Comics)	Universal	3	9.33	July 12, 2004				1		2
6. Detective Comics 170 (4/51, DC Comics)	Universal	3	9.33	December 16, 2004				1		2
7. Detective Comics 170 (4/51, DC Comics)	Universal	3	9.33	July 07, 2005				1		2
8. Detective Comics 170 (4/51, DC Comics)	Universal	4	7.75	January 27, 2006				1		2													1
9. Detective Comics 170 (4/51, DC Comics)	Universal	6	7.33	June 20, 2006				1		2			1						1				1
10. Detective Comics 170 (4/51, DC Comics)	Universal	6	7.33	January 10, 2007				1		2			1						1				1
11. Detective Comics 170 (4/51, DC Comics)	Universal	6	7.33	July 05, 2007				1		2			1						1				1
12. Detective Comics 170 (4/51, DC Comics)	Universal	6	7.33	January 09, 2008				1		2			1						1				1
13. Detective Comics 170 (4/51, DC Comics)	Universal	6	7.33	July 01, 2008				1		2			1						1				1
14. Detective Comics 170 (4/51, DC Comics)	Universal	6	7.33	January 13, 2009				1		2			1						1				1
15. Detective Comics 170 (4/51, DC Comics)	Universal	6	7.33	June 24, 2009				1		2			1						1				1
16. Detective Comics 170 (4/51, DC Comics)	Universal	7	7.29	December 15, 2009				1		2			1		1				1				1
17. Detective Comics 170 (4/51, DC Comics)	Universal	7	7.29	June 14, 2010				1		2			1		1				1				1
18. Detective Comics 170 (4/51, DC Comics)	Universal	8	7.19	December 27, 2010				1		2			1		1	1			1				1
19. Detective Comics 170 (4/51, DC Comics)	Universal	8	7.19	June 27, 2011				1		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
20. Detective Comics 170 (4/51, DC Comics)	Universal	12	6.44	January 02, 2012				1		2		1	1		1	1			2	1			1			1
21. Detective Comics 170 (4/51, DC Comics)	Universal	13	6.33	July 02, 2012				1		2		1	1		1	1			3	1			1			1
22. Detective Comics 170 (4/51, DC Comics)	Universal	13	6.33	December 31, 2012				1		2		1	1		1	1			3	1			1			1
23. Detective Comics 170 (4/51, DC Comics)	Universal	13	6.33	June 22, 2013				1		2		1	1		1	1			3	1			1			1
24. Detective Comics 170 (4/51, DC Comics)	Universal	13	6.33	December 31, 2013				1		2		1	1		1	1			3	1			1			1
25. Detective Comics 170 (4/51, DC Comics)	Universal	13	6.33	July 01, 2014				1		2		1	1		1	1			3	1			1			1
26. Detective Comics 170 (4/51, DC Comics)	Universal	14	6.27	December 30, 2014				1		2		1	1		1	1		1	3	1			1			1
27. Detective Comics 170 (4/51, DC Comics)	Universal	14	6.27	June 30, 2015				1		2		1	1		1	1		1	3	1			1			1
28. Detective Comics 170 (4/51, DC Comics)	Universal	15	6.29	December 29, 2015				1		2		1	1		1	2		1	3	1			1			1
29. Detective Comics 170 (4/51, DC Comics)	Universal	15	6.29	June 28, 2016				1		2		1	1		1	2		1	3	1			1			1
30. Detective Comics 170 (4/51, DC Comics)	Universal	15	6.29	December 27, 2016				1		2		1	1		1	2		1	3	1			1			1
31. Detective Comics 170 (4/51, DC Comics)	Universal	17	6.28	June 27, 2017				1		2		1	1		1	3	1	1	3	1			1			1
32. Detective Comics 170 (4/51, DC Comics)	Universal	19	6.02	January 02, 2018				1		2		1	1		1	3	1	1	3	2			2			1
33. Detective Comics 170 (4/51, DC Comics)	Universal	20	5.94	July 03, 2018				1		2		1	1		1	3	1	1	3	3			2			1
34. Detective Comics 170 (4/51, DC Comics)	Universal	22	5.76	January 01, 2019				1		2		1	1		1	3	1	1	3	4		1	2			1
35. Detective Comics 170 (4/51, DC Comics)	Universal	23	5.82	July 02, 2019				1		2		1	1		2	3	1	1	3	4		1	2			1
36. Detective Comics 170 (4/51, DC Comics)	Universal	27	5.86	December 31, 2019				1		2		2	1	1	2	3	1	1	3	5	1	1	2			1
37. Detective Comics 170 (4/51, DC Comics)	Universal	28	5.94	June 30, 2020				1		2		2	2	1	2	3	1	1	3	5	1	1	2			1
38. Detective Comics 170 (4/51, DC Comics)	Universal	30	6.09	December 29, 2020				1	1	2		2	2	1	3	3	1	1	3	5	1	1	2			1
39. Detective Comics 170 (4/51, DC Comics)	Universal	31	5.94	June 29, 2021				1	1	2		2	2	1	3	3	1	1	3	5	1	1	2			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 170 (4/51, DC Comics)	Universal	31	5.94	December 28, 2021				1	1	2		2	2	1	3	3	1	1	3	5	1	1	2			1	1
41. Detective Comics 170 (4/51, DC Comics)	Universal	32	5.90	June 28, 2022				1	1	2		2	2	1	3	3	1	1	3	6	1	1	2			1	1
42. Detective Comics 170 (4/51, DC Comics)	Universal	33	5.78	December 27, 2022				1	1	2		2	2	1	3	3	1	1	3	6	1	1	2		1	1	1
43. Detective Comics 170 (4/51, DC Comics)	Universal	35	5.73	June 27, 2023				1	1	2		2	2	1	3	3	1	1	5	6	1	1	2		1	1	1
44. Detective Comics 170 (4/51, DC Comics)	Universal	38	5.68	December 31, 2023				1	1	2		2	2	2	3	3	1	1	5	7	1	1	3		1	1	1
45. Detective Comics 170 (4/51, DC Comics)	Universal	50	5.84	June 24, 2025				1	1	2	1	3	2	4	5	3	2	2	6	10	1	1	3		1	1	1
46. Detective Comics 170 (4/51, DC Comics)	Universal	50	5.84	July 01, 2025				1	1	2	1	3	2	4	5	3	2	2	6	10	1	1	3		1	1	1
47. Detective Comics 170 (4/51, DC Comics)	Universal	50	5.84	July 15, 2025				1	1	2	1	3	2	4	5	3	2	2	6	10	1	1	3		1	1	1
48. Detective Comics 170 (4/51, DC Comics)	Universal	50	5.84	July 22, 2025				1	1	2	1	3	2	4	5	3	2	2	6	10	1	1	3		1	1	1
49. Detective Comics 170 (4/51, DC Comics)	Universal	50	5.84	July 29, 2025				1	1	2	1	3	2	4	5	3	2	2	6	10	1	1	3		1	1	1
50. Detective Comics 170 (4/51, DC Comics)	Universal	50	5.84	August 05, 2025				1	1	2	1	3	2	4	5	3	2	2	6	10	1	1	3		1	1	1
51. Detective Comics 170 (4/51, DC Comics)	Universal	50	5.84	August 12, 2025				1	1	2	1	3	2	4	5	3	2	2	6	10	1	1	3		1	1	1
52. Detective Comics 170 (4/51, DC Comics)	Universal	50	5.84	August 19, 2025				1	1	2	1	3	2	4	5	3	2	2	6	10	1	1	3		1	1	1
53. Detective Comics 170 (4/51, DC Comics)	Signature	1	4.00	December 31, 2023																	1
54. Detective Comics 170 (4/51, DC Comics)	Signature	1	4.00	June 24, 2025																	1
55. Detective Comics 170 (4/51, DC Comics)	Signature	1	4.00	July 01, 2025																	1
56. Detective Comics 170 (4/51, DC Comics)	Signature	1	4.00	July 15, 2025																	1
57. Detective Comics 170 (4/51, DC Comics)	Signature	1	4.00	July 22, 2025																	1
58. Detective Comics 170 (4/51, DC Comics)	Signature	1	4.00	July 29, 2025																	1
59. Detective Comics 170 (4/51, DC Comics)	Signature	1	4.00	August 05, 2025																	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 170 (4/51, DC Comics)	Signature	1	4.00	August 12, 2025																	1
61. Detective Comics 170 (4/51, DC Comics)	Signature	1	4.00	August 19, 2025																	1
62. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	June 22, 2013													1
63. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	December 31, 2013													1
64. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	July 01, 2014													1
65. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	December 30, 2014													1
66. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	June 30, 2015													1
67. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	December 29, 2015													1
68. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	June 28, 2016													1
69. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	December 27, 2016													1
70. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	June 27, 2017													1
71. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	January 02, 2018													1
72. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	July 03, 2018													1
73. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	January 01, 2019													1
74. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	July 02, 2019													1
75. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	December 31, 2019													1
76. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	June 30, 2020													1
77. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	December 29, 2020													1
78. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	June 29, 2021													1
79. Detective Comics 170 (4/51, DC Comics)	Qualified	1	6.00	December 28, 2021													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 170 (4/51, DC Comics)	Qualified	2	5.50	June 28, 2022													1		1
81. Detective Comics 170 (4/51, DC Comics)	Qualified	2	5.50	December 27, 2022													1		1
82. Detective Comics 170 (4/51, DC Comics)	Qualified	2	5.50	June 27, 2023													1		1
83. Detective Comics 170 (4/51, DC Comics)	Qualified	2	5.50	December 31, 2023													1		1
84. Detective Comics 170 (4/51, DC Comics)	Qualified	2	5.50	June 24, 2025													1		1
85. Detective Comics 170 (4/51, DC Comics)	Qualified	2	5.50	July 01, 2025													1		1
86. Detective Comics 170 (4/51, DC Comics)	Qualified	2	5.50	July 15, 2025													1		1
87. Detective Comics 170 (4/51, DC Comics)	Qualified	2	5.50	July 22, 2025													1		1
88. Detective Comics 170 (4/51, DC Comics)	Qualified	2	5.50	July 29, 2025													1		1
89. Detective Comics 170 (4/51, DC Comics)	Qualified	2	5.50	August 05, 2025													1		1
90. Detective Comics 170 (4/51, DC Comics)	Qualified	2	5.50	August 12, 2025													1		1
91. Detective Comics 170 (4/51, DC Comics)	Qualified	2	5.50	August 19, 2025													1		1

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