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| Incredible Science Fiction #30 | ||
| E.C. Comics, 7-8/55 | ||
| Jack Oleck story, Jack Davis cover | 1st issue. | |
| Wally Wood, Bernard Krigstein, | Formerly Weird Science-Fantasy. | |
| Joe Orlando and Jack Davis art | Letter from Dan Adkins. | |
| 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 | 91 | 5.24 | 0 0.00% | 0 0.00% | 0 0.0% | 4 4.4% | 3 7.7% | 0 7.7% | 1 8.8% | 1 9.9% | 2 12.1% | 3 15.4% | 8 24.2% | 5 29.7% | 9 39.6% | 5 45.1% | 8 54% | 9 64% | 13 78% | 5 84% | 5 89% | 1 90% | 6 97% | 1 98% | 2 100% | 0 100% | 0 100% |
| 1 BOOK | Restored | 9 | 4.17 | 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% | 2 22.2% | 1 33.3% | 1 44.4% | 0 44.4% | 1 56% | 2 78% | 1 89% | 0 89% | 0 89% | 0 89% | 0 89% | 1 100% | 0 100% |
| 1 BOOK | Qualified | 2 | 2.50 | 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% | 0 0.0% | 0 0.0% | 1 50% | 0 50% | 0 50% | 0 50% | 0 50% | 0 50% | 0 50% | 0 50% | 0 50% | 1 100% |
| 1 BOOK | Signature | 1 | 3.00 | 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% | 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% |
| Incredible Science Fiction #30 (1955, E.C. Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 0 9.8 | 4% 4 9.6 | 3% 3 9.4 | 0% 0 9.2 | 1% 1 9.0 | 1% 1 8.5 | 2% 2 8.0 | 3% 3 7.5 | 9% 8 7.0 | 5% 5 6.5 | 10% 9 6.0 | 5% 5 5.5 | 9% 8 5.0 | 10% 9 4.5 | 14% 13 4.0 | 5% 5 3.5 | 5% 5 3.0 | 1% 1 2.5 | 7% 6 2.0 | 1% 1 1.8 | 2% 2 1.5 | 0% 0 1.0 | 0% 0 0.5 |
| cgcdata.com, last updated March 17, 2026 | ||||||||||||||||||||||||