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| Detective Comics #30 | ||
| DC Comics, 8/39 | ||
| Gardner Fox & Jerry Siegel stories | Doctor Death appearance. | |
| Sheldon Moldoff, Joe Shuster & Bob | Story concludes from issue #29 | |
| Kane art, Fred Guardineer cover & 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 | 47 | 4.19 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 2 4.3% | 1 6.4% | 3 12.8% | 1 14.9% | 0 14.9% | 2 19.1% | 2 23.4% | 1 25.5% | 5 36.2% | 2 40.4% | 0 40.4% | 4 48.9% | 6 62% | 2 66% | 1 68% | 4 77% | 3 83% | 2 87% | 1 89% | 5 100% |
| 1 BOOK | Restored | 28 | 4.64 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 1 3.6% | 3 14.3% | 3 25.0% | 1 28.6% | 0 28.6% | 1 32.1% | 2 39.3% | 3 50% | 1 54% | 0 54% | 1 57% | 1 61% | 1 64% | 2 71% | 1 75% | 1 79% | 0 79% | 3 89% | 3 100% |
| 1 BOOK | Qualified | 1 | 1.00 | 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% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 1 100% | 0 100% |
| Detective Comics #30 (1939, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 0 9.8 | 0% 0 9.6 | 0% 0 9.4 | 4% 2 9.2 | 2% 1 9.0 | 6% 3 8.5 | 2% 1 8.0 | 0% 0 7.5 | 4% 2 7.0 | 4% 2 6.5 | 2% 1 6.0 | 11% 5 5.5 | 4% 2 5.0 | 0% 0 4.5 | 9% 4 4.0 | 13% 6 3.5 | 4% 2 3.0 | 2% 1 2.5 | 9% 4 2.0 | 6% 3 1.8 | 4% 2 1.5 | 2% 1 1.0 | 11% 5 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||