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| Justice League of America #20 | ||
| DC Comics, 6/63 | ||
| Gardner Fox story | ||
| Mike Sekowsky & Bernard Sachs art | ||
| Mike Sekowsky & 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 | 195 | 7.04 | 0 0.00% | 0 0.00% | 0 0.0% | 4 2.1% | 15 9.7% | 11 15.4% | 13 22.1% | 13 28.7% | 22 40.0% | 19 49.7% | 24 62% | 15 70% | 11 75% | 11 81% | 9 86% | 9 90% | 13 97% | 1 97% | 2 98% | 2 99% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Restored | 6 | 7.45 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 1 16.7% | 1 33.3% | 1 50% | 1 67% | 0 67% | 0 67% | 1 83% | 0 83% | 0 83% | 0 83% | 0 83% | 0 83% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Qualified | 4 | 7.85 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 1 25.0% | 0 25.0% | 0 25.0% | 0 25.0% | 2 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% | 0 100% | 0 100% | 0 100% | 0 100% |
| Justice League of America #20 (1963, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 0 9.8 | 2% 4 9.6 | 8% 15 9.4 | 6% 11 9.2 | 7% 13 9.0 | 7% 13 8.5 | 11% 22 8.0 | 10% 19 7.5 | 12% 24 7.0 | 8% 15 6.5 | 6% 11 6.0 | 6% 11 5.5 | 5% 9 5.0 | 5% 9 4.5 | 7% 13 4.0 | 1% 1 3.5 | 1% 2 3.0 | 1% 2 2.5 | 1% 1 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 | ||||||||||||||||||||||||