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| Detective Comics #414 | ||
| DC Comics, 8/71 | ||
| Denny O'Neil & Frank Robbins stories | Batgirl backup story. | |
| Irv Novick, Dick Giordano & Don Heck art | ||
| Neal Adams 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 | 190 | 8.63 | 0 0.00% | 0 0.00% | 11 5.8% | 27 20.0% | 40 41.1% | 34 59% | 19 69% | 13 76% | 8 80% | 14 87% | 4 89% | 7 93% | 3 95% | 0 95% | 3 96% | 1 97% | 3 98% | 2 99% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 21 | 7.65 | 0 0.00% | 0 0.00% | 1 4.8% | 2 14.3% | 1 19.0% | 1 23.8% | 2 33.3% | 3 47.6% | 1 52% | 2 62% | 1 67% | 3 81% | 1 86% | 0 86% | 1 90% | 2 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Restored | 2 | 7.30 | 0 0.00% | 0 0.00% | 0 0.0% | 1 50% | 0 50% | 0 50% | 0 50% | 0 50% | 0 50% | 0 50% | 0 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% |
| Detective Comics #414 (1971, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 6% 11 9.8 | 14% 27 9.6 | 21% 40 9.4 | 18% 34 9.2 | 10% 19 9.0 | 7% 13 8.5 | 4% 8 8.0 | 7% 14 7.5 | 2% 4 7.0 | 4% 7 6.5 | 2% 3 6.0 | 0% 0 5.5 | 2% 3 5.0 | 1% 1 4.5 | 2% 3 4.0 | 1% 2 3.5 | 1% 1 3.0 | 0% 0 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 | ||||||||||||||||||||||||