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House of Mystery #156
	DC Comics, 1/66

Dave Wood and Jack Miller stories		Origin and 1st appearance of
Jim Mooney and Joe Certa art		Dial H for Hero (Robby Reed).
Jim Mooney cover		Martian Manhunter backup story.

Books	CGC Label	CGC Total	Avg. Grade	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 BOOK	Universal	107	7.34	0 0.00%	0 0.00%	1 0.9%	5 5.6%	7 12.1%	6 17.8%	9 26.2%	5 30.8%	14 43.9%	15 58%	9 66%	11 77%	5 81%	6 87%	6 93%	2 94%	4 98%	0 98%	2 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%
1 BOOK	Qualified	1	9.20	0 0.00%	0 0.00%	0 0.0%	0 0.0%	0 0.0%	1 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%

TOTAL SUBMISSIONS (all types): 108

House of Mystery #156 (1966, DC Comics)
CGC Universal Grade Distribution

0
10

0
9.9

1
9.8

5
9.6

7
9.4

6
9.2

9
9.0

5
8.5

13%

14
8.0

14%

15
7.5

9
7.0

10%

11
6.5

5
6.0

6
5.5

6
5.0

2
4.5

4
4.0

0
3.5

2
3.0

0
2.5

0
2.0

0
1.8

0
1.5

0
1.0

0
0.5

cgcdata.com, last updated August 19, 2025

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