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Saga of the Swamp Thing #20
	DC Comics, 1/84

Alan Moore story		Alan Moore's run on Swamp Thing begins.
Dan Day & John Totleben art
Tom Yeates cover

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	753	9.32	0 0.00%	1 0.13%	227 30.3%	203 57%	113 72%	71 82%	53 89%	31 93%	18 95%	11 97%	9 98%	4 98%	3 99%	2 99%	2 99%	5 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%	0 100%
1 BOOK	Signature	26	9.44	0 0.00%	0 0.00%	13 50%	5 69%	1 73%	3 85%	1 88%	1 92%	1 96%	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%

TOTAL SUBMISSIONS (all types): 779

Saga of the Swamp Thing #20 (1984, DC Comics)
CGC Universal Grade Distribution

0
10

0.1%

1
9.9

30%

227
9.8

27%

203
9.6

15%

113
9.4

71
9.2

53
9.0

31
8.5

18
8.0

11
7.5

9
7.0

4
6.5

3
6.0

2
5.5

2
5.0

5
4.5

0
4.0

0
3.5

0
3.0

0
2.5

0
2.0

0
1.8

0
1.5

0
1.0

0
0.5

cgcdata.com, last updated September 16, 2025

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