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| Detective Comics #408 | ||
| DC Comics, 2/71 | ||
| Wein, Wolfman and Robbins stories | Doctor Tzin-Tzin appearance. | |
| Neal Adams, Dick Giordano and | Includes 1971 Batman calendar. | |
| 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 | 306 | 8.16 | 0 0.00% | 0 0.00% | 1 0.3% | 15 5.2% | 43 19.3% | 41 32.7% | 48 48.4% | 39 61% | 24 69% | 28 78% | 19 84% | 14 89% | 16 94% | 7 96% | 2 97% | 1 97% | 0 97% | 5 99% | 1 99% | 0 99% | 1 100% | 0 100% | 1 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 48 | 7.59 | 0 0.00% | 0 0.00% | 1 2.1% | 1 4.2% | 2 8.3% | 3 14.6% | 7 29.2% | 4 37.5% | 9 56% | 3 63% | 4 71% | 5 81% | 3 88% | 3 94% | 1 96% | 0 96% | 0 96% | 2 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Restored | 7 | 7.30 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 1 14.3% | 1 28.6% | 1 42.9% | 0 42.9% | 0 42.9% | 0 42.9% | 1 57% | 0 57% | 1 71% | 1 86% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Qualified | 4 | 6.25 | 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% | 2 50% | 0 50% | 0 50% | 1 75% | 0 75% | 0 75% | 0 75% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Detective Comics #408 (1971, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 1 9.8 | 5% 15 9.6 | 14% 43 9.4 | 13% 41 9.2 | 16% 48 9.0 | 13% 39 8.5 | 8% 24 8.0 | 9% 28 7.5 | 6% 19 7.0 | 5% 14 6.5 | 5% 16 6.0 | 2% 7 5.5 | 1% 2 5.0 | 0% 1 4.5 | 0% 0 4.0 | 2% 5 3.5 | 0% 1 3.0 | 0% 0 2.5 | 0% 1 2.0 | 0% 0 1.8 | 0% 1 1.5 | 0% 0 1.0 | 0% 0 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||