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Superman #308
	DC Comics, 2/77

Gerry Conway story		Supergirl appearance.
Jos? Luis Garc?a-L?pez art
Neal Adams 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. Superman 308 (2/77, DC Comics)	Universal	3	9.53	July 17, 2003				2	1
2. Superman 308 (2/77, DC Comics)	Universal	3	9.53	January 08, 2004				2	1
3. Superman 308 (2/77, DC Comics)	Universal	3	9.53	July 12, 2004				2	1
4. Superman 308 (2/77, DC Comics)	Universal	3	9.53	December 16, 2004				2	1
5. Superman 308 (2/77, DC Comics)	Universal	3	9.53	July 07, 2005				2	1
6. Superman 308 (2/77, DC Comics)	Universal	5	9.44	January 27, 2006				2	2	1
7. Superman 308 (2/77, DC Comics)	Universal	5	9.44	June 20, 2006				2	2	1
8. Superman 308 (2/77, DC Comics)	Universal	7	8.87	January 10, 2007				2	3	1								1
9. Superman 308 (2/77, DC Comics)	Universal	7	8.87	July 05, 2007				2	3	1								1
10. Superman 308 (2/77, DC Comics)	Universal	10	9.09	January 09, 2008				5	3	1								1
11. Superman 308 (2/77, DC Comics)	Universal	11	9.12	July 01, 2008				5	4	1								1
12. Superman 308 (2/77, DC Comics)	Universal	13	9.16	January 13, 2009				5	6	1								1
13. Superman 308 (2/77, DC Comics)	Universal	18	9.29	June 24, 2009			2	7	7	1								1
14. Superman 308 (2/77, DC Comics)	Universal	19	9.32	December 15, 2009			3	7	7	1								1
15. Superman 308 (2/77, DC Comics)	Universal	19	9.32	June 14, 2010			3	7	7	1								1
16. Superman 308 (2/77, DC Comics)	Universal	19	9.32	December 27, 2010			3	7	7	1								1
17. Superman 308 (2/77, DC Comics)	Universal	19	9.32	June 27, 2011			3	7	7	1								1
18. Superman 308 (2/77, DC Comics)	Universal	19	9.32	January 02, 2012			3	7	7	1								1
19. Superman 308 (2/77, DC Comics)	Universal	19	9.32	July 02, 2012			3	7	7	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. Superman 308 (2/77, DC Comics)	Universal	19	9.32	December 31, 2012			3	7	7	1								1
21. Superman 308 (2/77, DC Comics)	Universal	21	9.36	June 22, 2013			4	8	7	1								1
22. Superman 308 (2/77, DC Comics)	Universal	20	9.34	December 31, 2013			3	8	7	1								1
23. Superman 308 (2/77, DC Comics)	Universal	20	9.34	July 01, 2014			3	8	7	1								1
24. Superman 308 (2/77, DC Comics)	Universal	21	9.25	December 30, 2014			3	8	7	1				1				1
25. Superman 308 (2/77, DC Comics)	Universal	21	9.25	June 30, 2015			3	8	7	1				1				1
26. Superman 308 (2/77, DC Comics)	Universal	21	9.25	December 29, 2015			3	8	7	1				1				1
27. Superman 308 (2/77, DC Comics)	Universal	22	9.26	June 28, 2016			3	9	7	1				1				1
28. Superman 308 (2/77, DC Comics)	Universal	22	9.26	December 27, 2016			3	9	7	1				1				1
29. Superman 308 (2/77, DC Comics)	Universal	22	9.26	June 27, 2017			3	9	7	1				1				1
30. Superman 308 (2/77, DC Comics)	Universal	23	9.25	January 02, 2018			3	9	7	1	1			1				1
31. Superman 308 (2/77, DC Comics)	Universal	26	9.30	July 03, 2018			5	9	8	1	1			1				1
32. Superman 308 (2/77, DC Comics)	Universal	27	9.31	January 01, 2019			5	10	8	1	1			1				1
33. Superman 308 (2/77, DC Comics)	Universal	28	9.33	July 02, 2019			6	10	8	1	1			1				1
34. Superman 308 (2/77, DC Comics)	Universal	28	9.33	December 31, 2019			6	10	8	1	1			1				1
35. Superman 308 (2/77, DC Comics)	Universal	28	9.33	June 30, 2020			6	10	8	1	1			1				1
36. Superman 308 (2/77, DC Comics)	Universal	29	9.32	December 29, 2020			6	10	8	2	1			1				1
37. Superman 308 (2/77, DC Comics)	Universal	29	9.32	June 29, 2021			6	10	8	2	1			1				1
38. Superman 308 (2/77, DC Comics)	Universal	30	9.33	December 28, 2021			6	10	9	2	1			1				1
39. Superman 308 (2/77, DC Comics)	Universal	34	9.13	June 28, 2022			6	11	9	2	1		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. Superman 308 (2/77, DC Comics)	Universal	34	9.13	December 27, 2022			6	11	9	2	1		1	2				2
41. Superman 308 (2/77, DC Comics)	Universal	37	9.12	June 27, 2023			6	11	9	3	3		1	2				2
42. Superman 308 (2/77, DC Comics)	Universal	39	9.11	December 31, 2023			7	11	9	3	3		2	2				2
43. Superman 308 (2/77, DC Comics)	Universal	48	9.16	August 12, 2025			9	13	11	3	5	1	2	2				2
44. Superman 308 (2/77, DC Comics)	Universal	48	9.16	August 19, 2025			9	13	11	3	5	1	2	2				2
45. Superman 308 (2/77, DC Comics)	Universal	43	9.09	August 26, 2025			5	12	11	3	5	1	2	2				2
46. Superman 308 (2/77, DC Comics)	Universal	42	9.07	September 02, 2025			5	11	11	3	5	1	2	2				2
47. Superman 308 (2/77, DC Comics)	Universal	48	9.16	September 09, 2025			9	13	11	3	5	1	2	2				2
48. Superman 308 (2/77, DC Comics)	Universal	48	9.16	September 16, 2025			9	13	11	3	5	1	2	2				2
49. Superman 308 (2/77, DC Comics)	Signature	1	9.40	July 02, 2012					1
50. Superman 308 (2/77, DC Comics)	Signature	1	9.40	December 31, 2012					1
51. Superman 308 (2/77, DC Comics)	Signature	2	9.50	June 22, 2013				1	1
52. Superman 308 (2/77, DC Comics)	Signature	4	9.55	December 31, 2013			1	1	2
53. Superman 308 (2/77, DC Comics)	Signature	4	9.55	July 01, 2014			1	1	2
54. Superman 308 (2/77, DC Comics)	Signature	4	9.55	December 30, 2014			1	1	2
55. Superman 308 (2/77, DC Comics)	Signature	4	9.55	June 30, 2015			1	1	2
56. Superman 308 (2/77, DC Comics)	Signature	4	9.55	December 29, 2015			1	1	2
57. Superman 308 (2/77, DC Comics)	Signature	4	9.55	June 28, 2016			1	1	2
58. Superman 308 (2/77, DC Comics)	Signature	4	9.55	December 27, 2016			1	1	2
59. Superman 308 (2/77, DC Comics)	Signature	4	9.55	June 27, 2017			1	1	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
60. Superman 308 (2/77, DC Comics)	Signature	4	9.55	January 02, 2018			1	1	2
61. Superman 308 (2/77, DC Comics)	Signature	4	9.55	July 03, 2018			1	1	2
62. Superman 308 (2/77, DC Comics)	Signature	4	9.55	January 01, 2019			1	1	2
63. Superman 308 (2/77, DC Comics)	Signature	4	9.55	July 02, 2019			1	1	2
64. Superman 308 (2/77, DC Comics)	Signature	4	9.55	December 31, 2019			1	1	2
65. Superman 308 (2/77, DC Comics)	Signature	4	9.55	June 30, 2020			1	1	2
66. Superman 308 (2/77, DC Comics)	Signature	4	9.55	December 29, 2020			1	1	2
67. Superman 308 (2/77, DC Comics)	Signature	4	9.55	June 29, 2021			1	1	2
68. Superman 308 (2/77, DC Comics)	Signature	4	9.55	December 28, 2021			1	1	2
69. Superman 308 (2/77, DC Comics)	Signature	5	8.84	June 28, 2022			1	1	2								1
70. Superman 308 (2/77, DC Comics)	Signature	6	8.90	December 27, 2022			1	1	2	1							1
71. Superman 308 (2/77, DC Comics)	Signature	6	8.90	June 27, 2023			1	1	2	1							1
72. Superman 308 (2/77, DC Comics)	Signature	6	8.90	December 31, 2023			1	1	2	1							1
73. Superman 308 (2/77, DC Comics)	Signature	6	8.90	August 12, 2025			1	1	2	1							1
74. Superman 308 (2/77, DC Comics)	Signature	6	8.90	August 19, 2025			1	1	2	1							1
75. Superman 308 (2/77, DC Comics)	Signature	6	8.90	August 26, 2025			1	1	2	1							1
76. Superman 308 (2/77, DC Comics)	Signature	6	8.90	September 02, 2025			1	1	2	1							1
77. Superman 308 (2/77, DC Comics)	Signature	6	8.90	September 09, 2025			1	1	2	1							1
78. Superman 308 (2/77, DC Comics)	Signature	6	8.90	September 16, 2025			1	1	2	1							1

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"CGC Census Analysis" is provided by Greg Holland (©2003-2025).
Data is sourced from the public CGC census (© Certified Guaranty Company, LLC.)
Used with permission of CGC since 2003. Data is from July 01, 2001 to September 16, 2025.
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