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| Justice League of America #77 | ||
| DC Comics, 12/69 | ||
| Denny O'Neil story | Joker appearance. | |
| Dick Dillin and Joe Giella art | ||
| 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 | 82 | 8.85 | 0 0.00% | 0 0.00% | 6 7.3% | 10 19.5% | 21 45.1% | 17 66% | 3 70% | 9 80% | 7 89% | 3 93% | 1 94% | 2 96% | 0 96% | 1 98% | 1 99% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 1 | 9.00 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 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% | 0 100% |
| Justice League of America #77 (1969, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 7% 6 9.8 | 12% 10 9.6 | 26% 21 9.4 | 21% 17 9.2 | 4% 3 9.0 | 11% 9 8.5 | 9% 7 8.0 | 4% 3 7.5 | 1% 1 7.0 | 2% 2 6.5 | 0% 0 6.0 | 1% 1 5.5 | 1% 1 5.0 | 1% 1 4.5 | 0% 0 4.0 | 0% 0 3.5 | 0% 0 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 | ||||||||||||||||||||||||