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| Detective Comics #34 | ||
| DC Comics, 12/39 | ||
| Bill Finger and Jerry Siegel stories | Last non-Batman cover. | |
| Bob Kane and Fred Guardineer art | Full page ad for Flash Comics #1 | |
| Creig Flessel cover | ||
| 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 | 58 | 3.95 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 1 1.7% | 2 5.2% | 1 6.9% | 2 10.3% | 2 13.8% | 1 15.5% | 3 20.7% | 1 22.4% | 4 29.3% | 5 37.9% | 2 41.4% | 3 46.6% | 3 52% | 6 62% | 3 67% | 5 76% | 2 79% | 5 88% | 3 93% | 4 100% |
| 1 BOOK | Restored | 31 | 5.36 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 1 3.2% | 1 6.5% | 5 22.6% | 1 25.8% | 5 41.9% | 2 48.4% | 2 55% | 0 55% | 1 58% | 2 65% | 0 65% | 4 77% | 0 77% | 1 81% | 1 84% | 4 97% | 1 100% | 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% |
| Detective Comics #34 (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 | 2% 1 9.2 | 3% 2 9.0 | 2% 1 8.5 | 3% 2 8.0 | 3% 2 7.5 | 2% 1 7.0 | 5% 3 6.5 | 2% 1 6.0 | 7% 4 5.5 | 9% 5 5.0 | 3% 2 4.5 | 5% 3 4.0 | 5% 3 3.5 | 10% 6 3.0 | 5% 3 2.5 | 9% 5 2.0 | 3% 2 1.8 | 9% 5 1.5 | 5% 3 1.0 | 7% 4 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||