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| Detective Comics #364 | ||
| DC Comics, 6/67 | ||
| Gardner Fox story | Riddler appearance. | |
| Sheldon Moldoff and Irv Novick art | ||
| Carmine Infantino, Murphy Anderson 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 | 123 | 7.98 | 0 0.00% | 0 0.00% | 1 0.8% | 7 6.5% | 16 19.5% | 22 37.4% | 14 48.8% | 17 63% | 9 70% | 5 74% | 4 77% | 7 83% | 5 87% | 2 89% | 6 93% | 0 93% | 3 96% | 2 98% | 1 98% | 2 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 4 | 6.38 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 1 25.0% | 0 25.0% | 1 50% | 0 50% | 1 75% | 0 75% | 0 75% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Qualified | 2 | 9.05 | 0 0.00% | 0 0.00% | 0 0.0% | 1 50% | 0 50% | 0 50% | 0 50% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Detective Comics #364 (1967, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 1% 1 9.8 | 6% 7 9.6 | 13% 16 9.4 | 18% 22 9.2 | 11% 14 9.0 | 14% 17 8.5 | 7% 9 8.0 | 4% 5 7.5 | 3% 4 7.0 | 6% 7 6.5 | 4% 5 6.0 | 2% 2 5.5 | 5% 6 5.0 | 0% 0 4.5 | 2% 3 4.0 | 2% 2 3.5 | 1% 1 3.0 | 2% 2 2.5 | 0% 0 2.0 | 0% 0 1.8 | 0% 0 1.5 | 0% 0 1.0 | 0% 0 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||