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Swamp Thing #12
	DC Comics, 9-10/74

Len Wein story
Nestor Redondo 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. Swamp Thing 12 (9-10/74, DC Comics)	Universal	1	9.00	July 01, 2001							1
2. Swamp Thing 12 (9-10/74, DC Comics)	Universal	1	9.00	January 27, 2002							1
3. Swamp Thing 12 (9-10/74, DC Comics)	Universal	4	9.35	July 17, 2003				1	2		1
4. Swamp Thing 12 (9-10/74, DC Comics)	Universal	5	9.32	January 08, 2004				1	2	1	1
5. Swamp Thing 12 (9-10/74, DC Comics)	Universal	9	9.33	July 12, 2004				2	4	1	2
6. Swamp Thing 12 (9-10/74, DC Comics)	Universal	10	9.34	December 16, 2004				2	5	1	2
7. Swamp Thing 12 (9-10/74, DC Comics)	Universal	12	9.35	July 07, 2005				3	5	2	2
8. Swamp Thing 12 (9-10/74, DC Comics)	Universal	17	9.40	January 27, 2006			1	4	8	2	2
9. Swamp Thing 12 (9-10/74, DC Comics)	Universal	18	9.40	June 20, 2006			1	4	9	2	2
10. Swamp Thing 12 (9-10/74, DC Comics)	Universal	23	9.27	January 10, 2007			1	4	10	2	3	3
11. Swamp Thing 12 (9-10/74, DC Comics)	Universal	25	9.28	July 05, 2007			1	5	10	3	3	3
12. Swamp Thing 12 (9-10/74, DC Comics)	Universal	32	9.27	January 09, 2008			1	6	12	4	6	3
13. Swamp Thing 12 (9-10/74, DC Comics)	Universal	36	9.28	July 01, 2008			1	7	14	5	6	3
14. Swamp Thing 12 (9-10/74, DC Comics)	Universal	36	9.29	January 13, 2009			1	8	14	4	6	3
15. Swamp Thing 12 (9-10/74, DC Comics)	Universal	40	9.30	June 24, 2009			1	9	16	4	7	3
16. Swamp Thing 12 (9-10/74, DC Comics)	Universal	42	9.32	December 15, 2009			2	10	16	4	7	3
17. Swamp Thing 12 (9-10/74, DC Comics)	Universal	49	9.37	June 14, 2010			6	12	16	5	7	3
18. Swamp Thing 12 (9-10/74, DC Comics)	Universal	49	9.37	December 27, 2010			6	12	16	5	7	3
19. Swamp Thing 12 (9-10/74, DC Comics)	Universal	52	9.38	June 27, 2011			7	14	16	5	7	3
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. Swamp Thing 12 (9-10/74, DC Comics)	Universal	53	9.33	January 02, 2012			7	14	16	5	7	3				1
21. Swamp Thing 12 (9-10/74, DC Comics)	Universal	54	9.34	July 02, 2012			8	14	16	5	7	3				1
22. Swamp Thing 12 (9-10/74, DC Comics)	Universal	54	9.34	December 31, 2012			8	14	16	5	7	3				1
23. Swamp Thing 12 (9-10/74, DC Comics)	Universal	59	9.25	June 22, 2013			8	15	18	5	7	3		1		1		1
24. Swamp Thing 12 (9-10/74, DC Comics)	Universal	59	9.25	December 31, 2013			8	15	18	5	7	3		1		1		1
25. Swamp Thing 12 (9-10/74, DC Comics)	Universal	63	9.27	July 01, 2014			10	16	19	5	7	3		1		1		1
26. Swamp Thing 12 (9-10/74, DC Comics)	Universal	63	9.27	December 30, 2014			10	16	19	5	7	3		1		1		1
27. Swamp Thing 12 (9-10/74, DC Comics)	Universal	65	9.27	June 30, 2015			10	16	20	6	7	3		1		1		1
28. Swamp Thing 12 (9-10/74, DC Comics)	Universal	66	9.27	December 29, 2015			10	16	20	6	8	3		1		1		1
29. Swamp Thing 12 (9-10/74, DC Comics)	Universal	70	9.27	June 28, 2016			10	17	22	6	9	3		1		1		1
30. Swamp Thing 12 (9-10/74, DC Comics)	Universal	70	9.27	December 27, 2016			10	17	22	6	9	3		1		1		1
31. Swamp Thing 12 (9-10/74, DC Comics)	Universal	72	9.26	June 27, 2017			11	17	22	6	9	3		2		1		1
32. Swamp Thing 12 (9-10/74, DC Comics)	Universal	74	9.24	January 02, 2018			11	18	22	6	9	3	1	2		1		1
33. Swamp Thing 12 (9-10/74, DC Comics)	Universal	76	9.20	July 03, 2018			11	18	23	6	9	3	1	2		1	1	1
34. Swamp Thing 12 (9-10/74, DC Comics)	Universal	78	9.17	January 01, 2019			11	19	23	6	9	3	1	2		1	2	1
35. Swamp Thing 12 (9-10/74, DC Comics)	Universal	79	9.17	July 02, 2019			11	20	23	6	9	3	1	2		1	2	1
36. Swamp Thing 12 (9-10/74, DC Comics)	Universal	85	9.18	December 31, 2019			15	20	23	7	9	3	1	3		1	2	1
37. Swamp Thing 12 (9-10/74, DC Comics)	Universal	90	9.15	June 30, 2020			15	21	23	8	9	4	2	4		1	2	1
38. Swamp Thing 12 (9-10/74, DC Comics)	Universal	94	9.15	December 29, 2020			15	24	23	8	9	4	3	4		1	2	1
39. Swamp Thing 12 (9-10/74, DC Comics)	Universal	99	9.14	June 29, 2021			15	24	25	9	9	5	4	4		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
40. Swamp Thing 12 (9-10/74, DC Comics)	Universal	106	9.03	December 28, 2021			15	25	26	9	10	5	4	5	1	2	2	1			1
41. Swamp Thing 12 (9-10/74, DC Comics)	Universal	109	9.05	June 28, 2022			15	27	26	10	10	5	4	5	1	2	2	1			1
42. Swamp Thing 12 (9-10/74, DC Comics)	Universal	124	9.04	December 27, 2022			16	32	28	11	11	9	4	5	1	2	2	2			1
43. Swamp Thing 12 (9-10/74, DC Comics)	Universal	133	8.96	June 27, 2023			16	34	28	11	12	11	5	6	1	2	2	4			1
44. Swamp Thing 12 (9-10/74, DC Comics)	Universal	142	8.95	December 31, 2023			17	37	29	12	13	11	6	6	1	2	2	4			2
45. Swamp Thing 12 (9-10/74, DC Comics)	Universal	167	8.95	June 24, 2025			21	43	34	14	14	12	9	7	1	4	2	4			2
46. Swamp Thing 12 (9-10/74, DC Comics)	Universal	168	8.93	July 01, 2025			21	43	34	14	14	12	9	7	1	4	3	4			2
47. Swamp Thing 12 (9-10/74, DC Comics)	Universal	168	8.93	July 15, 2025			21	43	34	14	14	12	9	7	1	4	3	4			2
48. Swamp Thing 12 (9-10/74, DC Comics)	Universal	168	8.93	July 22, 2025			21	43	34	14	14	12	9	7	1	4	3	4			2
49. Swamp Thing 12 (9-10/74, DC Comics)	Universal	168	8.93	July 29, 2025			21	43	34	14	14	12	9	7	1	4	3	4			2
50. Swamp Thing 12 (9-10/74, DC Comics)	Universal	168	8.93	August 05, 2025			21	43	34	14	14	12	9	7	1	4	3	4			2
51. Swamp Thing 12 (9-10/74, DC Comics)	Universal	168	8.93	August 12, 2025			21	43	34	14	14	12	9	7	1	4	3	4			2
52. Swamp Thing 12 (9-10/74, DC Comics)	Universal	168	8.93	August 19, 2025			21	43	34	14	14	12	9	7	1	4	3	4			2
53. Swamp Thing 12 (9-10/74, DC Comics)	Signature	1	9.20	January 13, 2009						1
54. Swamp Thing 12 (9-10/74, DC Comics)	Signature	1	9.20	June 24, 2009						1
55. Swamp Thing 12 (9-10/74, DC Comics)	Signature	1	9.20	December 15, 2009						1
56. Swamp Thing 12 (9-10/74, DC Comics)	Signature	1	9.20	June 14, 2010						1
57. Swamp Thing 12 (9-10/74, DC Comics)	Signature	1	9.20	December 27, 2010						1
58. Swamp Thing 12 (9-10/74, DC Comics)	Signature	1	9.20	June 27, 2011						1
59. Swamp Thing 12 (9-10/74, DC Comics)	Signature	1	9.20	January 02, 2012						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. Swamp Thing 12 (9-10/74, DC Comics)	Signature	1	9.20	July 02, 2012						1
61. Swamp Thing 12 (9-10/74, DC Comics)	Signature	1	9.20	December 31, 2012						1
62. Swamp Thing 12 (9-10/74, DC Comics)	Signature	1	9.20	June 22, 2013						1
63. Swamp Thing 12 (9-10/74, DC Comics)	Signature	1	9.20	December 31, 2013						1
64. Swamp Thing 12 (9-10/74, DC Comics)	Signature	2	9.20	July 01, 2014						2
65. Swamp Thing 12 (9-10/74, DC Comics)	Signature	2	9.20	December 30, 2014						2
66. Swamp Thing 12 (9-10/74, DC Comics)	Signature	3	9.13	June 30, 2015						2	1
67. Swamp Thing 12 (9-10/74, DC Comics)	Signature	3	9.13	December 29, 2015						2	1
68. Swamp Thing 12 (9-10/74, DC Comics)	Signature	3	9.13	June 28, 2016						2	1
69. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	December 27, 2016						2	1		1				1
70. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	June 27, 2017						2	1		1				1
71. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	January 02, 2018						2	1		1				1
72. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	July 03, 2018						2	1		1				1
73. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	January 01, 2019						2	1		1				1
74. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	July 02, 2019						2	1		1				1
75. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	December 31, 2019						2	1		1				1
76. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	June 30, 2020						2	1		1				1
77. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	December 29, 2020						2	1		1				1
78. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	June 29, 2021						2	1		1				1
79. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	December 28, 2021						2	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. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	June 28, 2022						2	1		1				1
81. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	December 27, 2022						2	1		1				1
82. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	June 27, 2023						2	1		1				1
83. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	December 31, 2023						2	1		1				1
84. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	June 24, 2025						2	1		1				1
85. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	July 01, 2025						2	1		1				1
86. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	July 15, 2025						2	1		1				1
87. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	July 22, 2025						2	1		1				1
88. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	July 29, 2025						2	1		1				1
89. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	August 05, 2025						2	1		1				1
90. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	August 12, 2025						2	1		1				1
91. Swamp Thing 12 (9-10/74, DC Comics)	Signature	5	8.28	August 19, 2025						2	1		1				1
92. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	1	9.20	June 30, 2015						1
93. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	1	9.20	December 29, 2015						1
94. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	1	9.20	June 28, 2016						1
95. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	1	9.20	December 27, 2016						1
96. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	1	9.20	June 27, 2017						1
97. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	1	9.20	January 02, 2018						1
98. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	1	9.20	July 03, 2018						1
99. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	1	9.20	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
100. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	1	9.20	July 02, 2019						1
101. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	1	9.20	December 31, 2019						1
102. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	2	6.85	June 30, 2020						1										1
103. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	2	6.85	December 29, 2020						1										1
104. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	2	6.85	June 29, 2021						1										1
105. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	2	6.85	December 28, 2021						1										1
106. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	2	6.85	June 28, 2022						1										1
107. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	2	6.85	December 27, 2022						1										1
108. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	2	6.85	June 27, 2023						1										1
109. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	2	6.85	December 31, 2023						1										1
110. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	3	7.70	June 24, 2025					1	1										1
111. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	3	7.70	July 01, 2025					1	1										1
112. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	3	7.70	July 15, 2025					1	1										1
113. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	3	7.70	July 22, 2025					1	1										1
114. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	3	7.70	July 29, 2025					1	1										1
115. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	3	7.70	August 05, 2025					1	1										1
116. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	3	7.70	August 12, 2025					1	1										1
117. Swamp Thing 12 (9-10/74, DC Comics)	Qualified	3	7.70	August 19, 2025					1	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 August 19, 2025.
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