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| Showcase #31 | ||
| DC Comics, 3-4/61 | ||
| Jack Miller story | Aquaman and Aqualad. | |
| Nick Cardy art | Full page ad for | |
| Dick Dillin and Sheldon Moldoff cover | Rip Hunter Time Master #1 | |
| 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 | 237 | 6.02 | 0 0.00% | 0 0.00% | 0 0.0% | 1 0.4% | 2 1.3% | 8 4.6% | 4 6.3% | 13 11.8% | 18 19.4% | 17 26.6% | 24 36.7% | 21 45.6% | 29 58% | 21 67% | 20 75% | 15 81% | 17 89% | 11 93% | 6 96% | 6 98% | 0 98% | 2 99% | 1 100% | 1 100% | 0 100% |
| 1 BOOK | Restored | 9 | 5.22 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 1 11.1% | 0 11.1% | 0 11.1% | 0 11.1% | 1 22.2% | 1 33.3% | 1 44.4% | 0 44.4% | 1 56% | 1 67% | 1 78% | 0 78% | 1 89% | 0 89% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 2 | 4.25 | 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% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Qualified | 1 | 0.50 | 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% | 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% |
| Showcase #31 (1961, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 0 9.8 | 0% 1 9.6 | 1% 2 9.4 | 3% 8 9.2 | 2% 4 9.0 | 5% 13 8.5 | 8% 18 8.0 | 7% 17 7.5 | 10% 24 7.0 | 9% 21 6.5 | 12% 29 6.0 | 9% 21 5.5 | 8% 20 5.0 | 6% 15 4.5 | 7% 17 4.0 | 5% 11 3.5 | 3% 6 3.0 | 3% 6 2.5 | 0% 0 2.0 | 1% 2 1.8 | 0% 1 1.5 | 0% 1 1.0 | 0% 0 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||