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Mystery in Space #91
	DC Comics, 5/64

Gardner Fox story
Sid Greene art
Infantino and Anderson 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. Mystery in Space 91 (5/64, DC Comics)	Universal	1	9.60	July 01, 2001				1
2. Mystery in Space 91 (5/64, DC Comics)	Universal	1	9.60	January 27, 2002				1
3. Mystery in Space 91 (5/64, DC Comics)	Universal	1	9.60	July 17, 2003				1
4. Mystery in Space 91 (5/64, DC Comics)	Universal	2	9.40	January 08, 2004				1		1
5. Mystery in Space 91 (5/64, DC Comics)	Universal	2	9.40	July 12, 2004				1		1
6. Mystery in Space 91 (5/64, DC Comics)	Universal	2	9.40	December 16, 2004				1		1
7. Mystery in Space 91 (5/64, DC Comics)	Universal	5	9.26	July 07, 2005				2	1	1		1
8. Mystery in Space 91 (5/64, DC Comics)	Universal	5	9.26	January 27, 2006				2	1	1		1
9. Mystery in Space 91 (5/64, DC Comics)	Universal	5	9.26	June 20, 2006				2	1	1		1
10. Mystery in Space 91 (5/64, DC Comics)	Universal	5	9.26	January 10, 2007				2	1	1		1
11. Mystery in Space 91 (5/64, DC Comics)	Universal	6	8.88	July 05, 2007				2	1	1		1			1
12. Mystery in Space 91 (5/64, DC Comics)	Universal	7	8.54	January 09, 2008				2	1	1		1			1	1
13. Mystery in Space 91 (5/64, DC Comics)	Universal	9	8.42	July 01, 2008				2	1	1	1	1			2	1
14. Mystery in Space 91 (5/64, DC Comics)	Universal	9	8.42	January 13, 2009				2	1	1	1	1			2	1
15. Mystery in Space 91 (5/64, DC Comics)	Universal	9	8.42	June 24, 2009				2	1	1	1	1			2	1
16. Mystery in Space 91 (5/64, DC Comics)	Universal	10	8.33	December 15, 2009				2	1	1	1	1		1	2	1
17. Mystery in Space 91 (5/64, DC Comics)	Universal	10	8.33	June 14, 2010				2	1	1	1	1		1	2	1
18. Mystery in Space 91 (5/64, DC Comics)	Universal	10	8.33	December 27, 2010				2	1	1	1	1		1	2	1
19. Mystery in Space 91 (5/64, DC Comics)	Universal	14	8.49	June 27, 2011				3	1	1	3	1	1	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. Mystery in Space 91 (5/64, DC Comics)	Universal	17	8.49	January 02, 2012				3	1	1	5	1	1	2	2	1
21. Mystery in Space 91 (5/64, DC Comics)	Universal	17	8.49	July 02, 2012				3	1	1	5	1	1	2	2	1
22. Mystery in Space 91 (5/64, DC Comics)	Universal	17	8.49	December 31, 2012				3	1	1	5	1	1	2	2	1
23. Mystery in Space 91 (5/64, DC Comics)	Universal	18	8.54	June 22, 2013				3	2	1	5	1	1	2	2	1
24. Mystery in Space 91 (5/64, DC Comics)	Universal	20	8.42	December 31, 2013				3	2	1	5	2	1	2	2	1	1
25. Mystery in Space 91 (5/64, DC Comics)	Universal	21	8.35	July 01, 2014				3	2	1	5	2	1	2	3	1	1
26. Mystery in Space 91 (5/64, DC Comics)	Universal	22	8.35	December 30, 2014				3	2	1	5	3	1	2	3	1	1
27. Mystery in Space 91 (5/64, DC Comics)	Universal	22	8.35	June 30, 2015				3	2	1	5	3	1	2	3	1	1
28. Mystery in Space 91 (5/64, DC Comics)	Universal	22	8.35	December 29, 2015				3	2	1	5	3	1	2	3	1	1
29. Mystery in Space 91 (5/64, DC Comics)	Universal	23	8.25	June 28, 2016				3	2	1	5	3	1	2	3	1	2
30. Mystery in Space 91 (5/64, DC Comics)	Universal	23	8.25	December 27, 2016				3	2	1	5	3	1	2	3	1	2
31. Mystery in Space 91 (5/64, DC Comics)	Universal	24	8.26	June 27, 2017				3	2	1	5	4	1	2	3	1	2
32. Mystery in Space 91 (5/64, DC Comics)	Universal	24	8.26	January 02, 2018				3	2	1	5	4	1	2	3	1	2
33. Mystery in Space 91 (5/64, DC Comics)	Universal	24	8.26	July 03, 2018				3	2	1	5	4	1	2	3	1	2
34. Mystery in Space 91 (5/64, DC Comics)	Universal	26	8.31	January 01, 2019				3	2	2	5	5	1	2	3	1	2
35. Mystery in Space 91 (5/64, DC Comics)	Universal	28	8.04	July 02, 2019				3	2	2	5	5	1	2	3	1	2			2
36. Mystery in Space 91 (5/64, DC Comics)	Universal	29	8.05	December 31, 2019				3	2	2	5	6	1	2	3	1	2			2
37. Mystery in Space 91 (5/64, DC Comics)	Universal	29	8.05	June 30, 2020				3	2	2	5	6	1	2	3	1	2			2
38. Mystery in Space 91 (5/64, DC Comics)	Universal	30	8.07	December 29, 2020				3	2	2	5	7	1	2	3	1	2			2
39. Mystery in Space 91 (5/64, DC Comics)	Universal	31	8.03	June 29, 2021				3	2	2	5	7	1	2	4	1	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
40. Mystery in Space 91 (5/64, DC Comics)	Universal	31	8.03	December 28, 2021				3	2	2	5	7	1	2	4	1	2			2
41. Mystery in Space 91 (5/64, DC Comics)	Universal	31	8.03	June 28, 2022				3	2	2	5	7	1	2	4	1	2			2
42. Mystery in Space 91 (5/64, DC Comics)	Universal	32	7.89	December 27, 2022				3	2	2	5	7	1	2	4	1	2			2		1
43. Mystery in Space 91 (5/64, DC Comics)	Universal	33	7.80	June 27, 2023				3	2	2	5	7	1	2	4	1	2		1	2		1
44. Mystery in Space 91 (5/64, DC Comics)	Universal	34	7.79	December 31, 2023				3	2	2	5	7	1	3	4	1	2		1	2		1
45. Mystery in Space 91 (5/64, DC Comics)	Universal	38	7.75	June 24, 2025				3	2	2	6	7	2	3	4	2	3		1	2		1
46. Mystery in Space 91 (5/64, DC Comics)	Universal	38	7.75	July 01, 2025				3	2	2	6	7	2	3	4	2	3		1	2		1
47. Mystery in Space 91 (5/64, DC Comics)	Universal	38	7.75	July 15, 2025				3	2	2	6	7	2	3	4	2	3		1	2		1
48. Mystery in Space 91 (5/64, DC Comics)	Universal	38	7.75	July 22, 2025				3	2	2	6	7	2	3	4	2	3		1	2		1
49. Mystery in Space 91 (5/64, DC Comics)	Universal	38	7.75	July 29, 2025				3	2	2	6	7	2	3	4	2	3		1	2		1
50. Mystery in Space 91 (5/64, DC Comics)	Universal	38	7.75	August 05, 2025				3	2	2	6	7	2	3	4	2	3		1	2		1
51. Mystery in Space 91 (5/64, DC Comics)	Universal	38	7.75	August 12, 2025				3	2	2	6	7	2	3	4	2	3		1	2		1
52. Mystery in Space 91 (5/64, DC Comics)	Universal	38	7.75	August 19, 2025				3	2	2	6	7	2	3	4	2	3		1	2		1
53. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	June 22, 2013					1
54. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	December 31, 2013					1
55. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	July 01, 2014					1
56. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	December 30, 2014					1
57. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	June 30, 2015					1
58. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	December 29, 2015					1
59. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	June 28, 2016					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. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	December 27, 2016					1
61. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	June 27, 2017					1
62. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	January 02, 2018					1
63. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	July 03, 2018					1
64. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	January 01, 2019					1
65. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	July 02, 2019					1
66. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	December 31, 2019					1
67. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	June 30, 2020					1
68. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	December 29, 2020					1
69. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	June 29, 2021					1
70. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	December 28, 2021					1
71. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	June 28, 2022					1
72. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	December 27, 2022					1
73. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	June 27, 2023					1
74. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	December 31, 2023					1
75. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	June 24, 2025					1
76. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	July 01, 2025					1
77. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	July 15, 2025					1
78. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	July 22, 2025					1
79. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	July 29, 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
80. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	August 05, 2025					1
81. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	August 12, 2025					1
82. Mystery in Space 91 (5/64, DC Comics)	Restored	1	9.40	August 19, 2025					1

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"CGC Census Analysis" is provided by Greg Holland (©2003-2025).
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Used with permission of CGC since 2003. Data is from July 01, 2001 to August 19, 2025.
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