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| Weird Science #20 | ||
| E.C. Comics, 7-8/53 | ||
| Bill Gaines and Al Feldstein stories | Ray Bradbury adaptation. | |
| Williamson, Frazetta, Orlando and | Atomic explosion panels. | |
| Kamen art, Wally Wood cover and art | ||
| 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 | 148 | 5.15 | 0 0.00% | 0 0.00% | 2 1.4% | 7 6.1% | 1 6.8% | 2 8.1% | 1 8.8% | 5 12.2% | 3 14.2% | 7 18.9% | 6 23.0% | 12 31.1% | 14 40.5% | 8 45.9% | 9 52% | 10 59% | 19 72% | 10 78% | 13 87% | 2 89% | 6 93% | 4 95% | 2 97% | 3 99% | 2 100% |
| 1 BOOK | Restored | 8 | 5.19 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 1 12.5% | 0 12.5% | 1 25.0% | 1 37.5% | 1 50% | 0 50% | 0 50% | 0 50% | 1 63% | 2 88% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 1 | 6.00 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 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% |
| 1 BOOK | Qualified | 1 | 5.50 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 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% |
| Weird Science #20 (1953, E.C. Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 1% 2 9.8 | 5% 7 9.6 | 1% 1 9.4 | 1% 2 9.2 | 1% 1 9.0 | 3% 5 8.5 | 2% 3 8.0 | 5% 7 7.5 | 4% 6 7.0 | 8% 12 6.5 | 9% 14 6.0 | 5% 8 5.5 | 6% 9 5.0 | 7% 10 4.5 | 13% 19 4.0 | 7% 10 3.5 | 9% 13 3.0 | 1% 2 2.5 | 4% 6 2.0 | 3% 4 1.8 | 1% 2 1.5 | 2% 3 1.0 | 1% 2 0.5 |
| cgcdata.com, last updated February 24, 2026 | ||||||||||||||||||||||||