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| Incredible Science Fiction #31 | ||
| E.C. Comics, 9-10/55 | ||
| Jack Oleck story, Jack Davis cover | Roy Krenkel's only solo story for E.C. | |
| Wally Wood, Bernard Krigstein, | ||
| Roy Krenkel and Al Williamson 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 | 83 | 5.45 | 0 0.00% | 0 0.00% | 0 0.0% | 1 1.2% | 5 7.2% | 0 7.2% | 3 10.8% | 4 15.7% | 4 20.5% | 3 24.1% | 5 30.1% | 3 33.7% | 5 39.8% | 8 49.4% | 7 58% | 8 67% | 8 77% | 3 81% | 7 89% | 3 93% | 2 95% | 0 95% | 3 99% | 1 100% | 0 100% |
| 1 BOOK | Restored | 2 | 4.50 | 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% | 1 50% | 0 50% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Incredible Science Fiction #31 (1955, E.C. Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 0 9.8 | 1% 1 9.6 | 6% 5 9.4 | 0% 0 9.2 | 4% 3 9.0 | 5% 4 8.5 | 5% 4 8.0 | 4% 3 7.5 | 6% 5 7.0 | 4% 3 6.5 | 6% 5 6.0 | 10% 8 5.5 | 8% 7 5.0 | 10% 8 4.5 | 10% 8 4.0 | 4% 3 3.5 | 8% 7 3.0 | 4% 3 2.5 | 2% 2 2.0 | 0% 0 1.8 | 4% 3 1.5 | 1% 1 1.0 | 0% 0 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||