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Showcase #27
	DC Comics, 7-8/60

Robert Kanigher story		Origin and 1st appearance of Sea Devils.
Russ Heath cover and art		Grey tone 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. Showcase 27 (7-8/60, DC Comics)	Universal	10	6.42	July 01, 2001						1	1			2		2		2				2
2. Showcase 27 (7-8/60, DC Comics)	Universal	14	5.80	January 27, 2002						1	1			2		2	1	2		1	1	2		1
3. Showcase 27 (7-8/60, DC Comics)	Universal	36	6.08	July 17, 2003						2	1	3	1	5	3	3	2	3	3	1	4	3	1	1
4. Showcase 27 (7-8/60, DC Comics)	Universal	40	6.16	January 08, 2004						2	1	3	3	5	3	4	2	3	4	1	4	3	1	1
5. Showcase 27 (7-8/60, DC Comics)	Universal	43	6.24	July 12, 2004						2	1	3	4	6	3	5	2	3	4	1	4	3	1	1
6. Showcase 27 (7-8/60, DC Comics)	Universal	47	6.25	December 16, 2004						2	1	3	4	7	3	5	5	3	4	1	4	3	1	1
7. Showcase 27 (7-8/60, DC Comics)	Universal	49	6.24	July 07, 2005						2	1	4	4	7	3	5	5	3	4	1	4	4	1	1
8. Showcase 27 (7-8/60, DC Comics)	Universal	51	6.26	January 27, 2006						2	1	4	4	7	4	6	5	3	4	1	4	4	1	1
9. Showcase 27 (7-8/60, DC Comics)	Universal	54	6.28	June 20, 2006						2	1	4	4	8	4	7	5	4	4	1	4	4	1	1
10. Showcase 27 (7-8/60, DC Comics)	Universal	57	6.25	January 10, 2007						3	1	4	4	8	4	8	5	4	4	1	4	4	1	1		1
11. Showcase 27 (7-8/60, DC Comics)	Universal	61	6.35	July 05, 2007					1	3	1	5	5	8	4	8	5	4	5	1	4	4	1	1		1
12. Showcase 27 (7-8/60, DC Comics)	Universal	64	6.25	January 09, 2008					1	3	1	5	5	8	4	8	5	4	6	2	4	4	2	1		1
13. Showcase 27 (7-8/60, DC Comics)	Universal	69	6.21	July 01, 2008					1	3	1	5	6	9	4	8	6	4	6	3	4	4	3	1		1
14. Showcase 27 (7-8/60, DC Comics)	Universal	72	6.24	January 13, 2009					1	3	1	5	7	9	4	9	7	4	6	3	4	4	3	1		1
15. Showcase 27 (7-8/60, DC Comics)	Universal	74	6.25	June 24, 2009					1	3	1	5	7	10	4	9	8	4	6	3	4	4	3	1		1
16. Showcase 27 (7-8/60, DC Comics)	Universal	75	6.27	December 15, 2009					1	3	1	5	7	11	4	9	8	4	6	3	4	4	3	1		1
17. Showcase 27 (7-8/60, DC Comics)	Universal	81	6.23	June 14, 2010					1	3	2	5	8	11	5	9	8	4	7	3	4	4	4	2		1
18. Showcase 27 (7-8/60, DC Comics)	Universal	85	6.22	December 27, 2010					1	4	2	6	8	11	5	9	8	4	7	3	5	4	4	3		1
19. Showcase 27 (7-8/60, DC Comics)	Universal	88	6.20	June 27, 2011					1	4	2	6	8	12	6	9	8	4	7	3	5	4	4	4		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. Showcase 27 (7-8/60, DC Comics)	Universal	93	6.18	January 02, 2012					1	4	2	6	8	12	6	10	8	8	7	3	5	4	4	4		1
21. Showcase 27 (7-8/60, DC Comics)	Universal	103	6.24	July 02, 2012					1	5	2	6	11	12	10	10	8	8	7	4	5	4	4	5		1
22. Showcase 27 (7-8/60, DC Comics)	Universal	106	6.24	December 31, 2012					1	6	1	6	11	12	10	12	9	8	7	4	5	4	4	5		1
23. Showcase 27 (7-8/60, DC Comics)	Universal	110	6.28	June 22, 2013					1	6	2	6	12	12	11	12	9	8	8	4	5	4	4	5		1
24. Showcase 27 (7-8/60, DC Comics)	Universal	115	6.33	December 31, 2013					1	6	3	7	12	13	12	12	9	8	9	4	5	4	4	5		1
25. Showcase 27 (7-8/60, DC Comics)	Universal	119	6.32	July 01, 2014					1	6	3	7	12	13	13	13	9	10	9	4	5	4	4	5		1
26. Showcase 27 (7-8/60, DC Comics)	Universal	123	6.29	December 30, 2014					1	6	3	7	12	13	15	13	9	10	9	4	6	4	5	5		1
27. Showcase 27 (7-8/60, DC Comics)	Universal	128	6.26	June 30, 2015					1	6	3	7	12	13	16	14	9	11	9	5	7	4	5	5		1
28. Showcase 27 (7-8/60, DC Comics)	Universal	134	6.23	December 29, 2015					1	6	3	8	12	13	16	15	9	12	11	5	8	4	5	5		1
29. Showcase 27 (7-8/60, DC Comics)	Universal	145	6.24	June 28, 2016					1	6	3	8	13	14	19	17	10	12	11	8	8	4	5	5		1
30. Showcase 27 (7-8/60, DC Comics)	Universal	153	6.20	December 27, 2016					1	6	3	9	13	14	20	17	12	13	12	8	9	4	5	6		1
31. Showcase 27 (7-8/60, DC Comics)	Universal	164	6.20	June 27, 2017					1	6	4	10	13	15	23	18	12	13	12	8	12	4	6	6		1
32. Showcase 27 (7-8/60, DC Comics)	Universal	174	6.15	January 02, 2018					1	6	5	10	14	16	23	18	13	13	14	9	13	4	6	7		1	1
33. Showcase 27 (7-8/60, DC Comics)	Universal	183	6.13	July 03, 2018					1	6	5	11	15	17	23	19	14	13	14	11	14	5	6	7		1	1
34. Showcase 27 (7-8/60, DC Comics)	Universal	190	6.15	January 01, 2019					1	6	5	12	16	18	24	19	14	15	15	11	14	5	6	7		1	1
35. Showcase 27 (7-8/60, DC Comics)	Universal	195	6.19	July 02, 2019					1	6	6	12	16	19	26	20	14	15	15	11	14	5	6	7		1	1
36. Showcase 27 (7-8/60, DC Comics)	Universal	200	6.18	December 31, 2019					1	6	6	12	16	19	27	21	15	15	16	12	14	5	6	7		1	1
37. Showcase 27 (7-8/60, DC Comics)	Universal	208	6.15	June 30, 2020					1	6	6	13	15	21	28	22	15	15	17	12	16	5	6	7	1	1	1
38. Showcase 27 (7-8/60, DC Comics)	Universal	213	6.17	December 29, 2020					2	7	6	13	16	21	28	22	15	15	17	13	17	5	6	7	1	1	1
39. Showcase 27 (7-8/60, DC Comics)	Universal	223	6.16	June 29, 2021					3	7	6	14	16	21	28	23	17	17	17	13	19	6	6	7	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
40. Showcase 27 (7-8/60, DC Comics)	Universal	229	6.12	December 28, 2021					3	7	6	14	16	21	28	24	17	17	17	16	20	6	7	7	1	1	1
41. Showcase 27 (7-8/60, DC Comics)	Universal	240	6.07	June 28, 2022					3	6	7	14	16	22	29	25	19	19	17	16	20	7	9	8	1	1	1
42. Showcase 27 (7-8/60, DC Comics)	Universal	251	6.03	December 27, 2022					3	6	7	14	18	22	29	27	20	20	18	16	21	9	9	8	1	2	1
43. Showcase 27 (7-8/60, DC Comics)	Universal	263	6.00	June 27, 2023					3	6	7	14	20	23	29	28	20	20	21	17	22	10	11	8	1	2	1
44. Showcase 27 (7-8/60, DC Comics)	Universal	273	5.92	December 31, 2023					3	6	7	15	20	22	29	28	20	23	21	19	23	10	12	9	2	3	1
45. Showcase 27 (7-8/60, DC Comics)	Universal	254	5.99	September 02, 2025					2	5	7	12	21	23	27	30	22	15	18	19	20	9	15	4	2	3
46. Showcase 27 (7-8/60, DC Comics)	Universal	301	5.84	September 09, 2025				1	2	6	7	15	22	24	30	30	22	25	25	22	27	11	16	9	2	3	1	1
47. Showcase 27 (7-8/60, DC Comics)	Universal	302	5.84	September 16, 2025				1	2	6	7	15	22	24	30	30	22	25	26	22	27	11	16	9	2	3	1	1
48. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	January 10, 2007														1
49. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	July 05, 2007														1
50. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	January 09, 2008														1
51. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	July 01, 2008														1
52. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	January 13, 2009														1
53. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	June 24, 2009														1
54. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	December 15, 2009														1
55. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	June 14, 2010														1
56. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	December 27, 2010														1
57. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	June 27, 2011														1
58. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	January 02, 2012														1
59. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	July 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. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	December 31, 2012														1
61. Showcase 27 (7-8/60, DC Comics)	Signature	1	5.50	June 22, 2013														1
62. Showcase 27 (7-8/60, DC Comics)	Signature	2	5.75	December 31, 2013													1	1
63. Showcase 27 (7-8/60, DC Comics)	Signature	2	5.75	July 01, 2014													1	1
64. Showcase 27 (7-8/60, DC Comics)	Signature	2	5.75	December 30, 2014													1	1
65. Showcase 27 (7-8/60, DC Comics)	Signature	2	5.75	June 30, 2015													1	1
66. Showcase 27 (7-8/60, DC Comics)	Signature	3	5.00	December 29, 2015													1	1				1
67. Showcase 27 (7-8/60, DC Comics)	Signature	3	5.00	June 28, 2016													1	1				1
68. Showcase 27 (7-8/60, DC Comics)	Signature	4	5.13	December 27, 2016													1	2				1
69. Showcase 27 (7-8/60, DC Comics)	Signature	4	5.13	June 27, 2017													1	2				1
70. Showcase 27 (7-8/60, DC Comics)	Signature	4	5.13	January 02, 2018													1	2				1
71. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	July 03, 2018												1	1	2				1
72. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	January 01, 2019												1	1	2				1
73. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	July 02, 2019												1	1	2				1
74. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	December 31, 2019												1	1	2				1
75. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	June 30, 2020												1	1	2				1
76. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	December 29, 2020												1	1	2				1
77. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	June 29, 2021												1	1	2				1
78. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	December 28, 2021												1	1	2				1
79. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	June 28, 2022												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
80. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	December 27, 2022												1	1	2				1
81. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	June 27, 2023												1	1	2				1
82. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	December 31, 2023												1	1	2				1
83. Showcase 27 (7-8/60, DC Comics)	Signature	4	5.13	September 02, 2025													1	2				1
84. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	September 09, 2025												1	1	2				1
85. Showcase 27 (7-8/60, DC Comics)	Signature	5	5.40	September 16, 2025												1	1	2				1
86. Showcase 27 (7-8/60, DC Comics)	Restored	1	8.00	January 27, 2002									1
87. Showcase 27 (7-8/60, DC Comics)	Restored	2	8.00	July 17, 2003									2
88. Showcase 27 (7-8/60, DC Comics)	Restored	3	8.17	January 08, 2004								1	2
89. Showcase 27 (7-8/60, DC Comics)	Restored	3	8.17	July 12, 2004								1	2
90. Showcase 27 (7-8/60, DC Comics)	Restored	3	8.17	December 16, 2004								1	2
91. Showcase 27 (7-8/60, DC Comics)	Restored	3	8.17	July 07, 2005								1	2
92. Showcase 27 (7-8/60, DC Comics)	Restored	3	8.17	January 27, 2006								1	2
93. Showcase 27 (7-8/60, DC Comics)	Restored	3	8.17	June 20, 2006								1	2
94. Showcase 27 (7-8/60, DC Comics)	Restored	4	7.25	January 10, 2007								1	2							1
95. Showcase 27 (7-8/60, DC Comics)	Restored	4	7.25	July 05, 2007								1	2							1
96. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	January 09, 2008								1	2		1					1
97. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	July 01, 2008								1	2		1					1
98. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	January 13, 2009								1	2		1					1
99. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	June 24, 2009								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
100. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	December 15, 2009								1	2		1					1
101. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	June 14, 2010								1	2		1					1
102. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	December 27, 2010								1	2		1					1
103. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	June 27, 2011								1	2		1					1
104. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	January 02, 2012								1	2		1					1
105. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	July 02, 2012								1	2		1					1
106. Showcase 27 (7-8/60, DC Comics)	Restored	6	7.53	December 31, 2012						1		1	2		1					1
107. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	June 22, 2013								1	2		1					1
108. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	December 31, 2013								1	2		1					1
109. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	July 01, 2014								1	2		1					1
110. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	December 30, 2014								1	2		1					1
111. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	June 30, 2015								1	2		1					1
112. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	December 29, 2015								1	2		1					1
113. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	June 28, 2016								1	2		1					1
114. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	December 27, 2016								1	2		1					1
115. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	June 27, 2017								1	2		1					1
116. Showcase 27 (7-8/60, DC Comics)	Restored	5	7.20	January 02, 2018								1	2		1					1
117. Showcase 27 (7-8/60, DC Comics)	Restored	6	7.50	July 03, 2018							1	1	2		1					1
118. Showcase 27 (7-8/60, DC Comics)	Restored	6	7.50	January 01, 2019							1	1	2		1					1
119. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	July 02, 2019							1	1	2		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
120. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	December 31, 2019							1	1	2		1					2
121. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	June 30, 2020							1	1	2		1					2
122. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	December 29, 2020							1	1	2		1					2
123. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	June 29, 2021							1	1	2		1					2
124. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	December 28, 2021							1	1	2		1					2
125. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	June 28, 2022							1	1	2		1					2
126. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	December 27, 2022							1	1	2		1					2
127. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	June 27, 2023							1	1	2		1					2
128. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	December 31, 2023							1	1	2		1					2
129. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	September 02, 2025							1	1	2		1					2
130. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	September 09, 2025							1	1	2		1					2
131. Showcase 27 (7-8/60, DC Comics)	Restored	7	7.07	September 16, 2025							1	1	2		1					2

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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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