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| Green Lantern #20 | ||
| DC Comics, 4/63 | ||
| John Broome story | Flash appearance. | |
| Gil Kane and Joe Giella art | ||
| Gil Kane and 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 | 150 | 6.68 | 0 0.00% | 0 0.00% | 0 0.0% | 3 2.0% | 4 4.7% | 9 10.7% | 12 18.7% | 19 31.3% | 10 38.0% | 9 44.0% | 13 53% | 11 60% | 14 69% | 9 75% | 9 81% | 5 85% | 6 89% | 6 93% | 5 96% | 4 99% | 0 99% | 1 99% | 0 99% | 0 99% | 1 100% |
| 1 BOOK | Signature | 2 | 6.00 | 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 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% |
| 1 BOOK | Restored | 1 | 4.00 | 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% | 0 0.0% | 0 0.0% | 0 0.0% | 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% |
| Green Lantern #20 (1963, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 0 9.8 | 2% 3 9.6 | 3% 4 9.4 | 6% 9 9.2 | 8% 12 9.0 | 13% 19 8.5 | 7% 10 8.0 | 6% 9 7.5 | 9% 13 7.0 | 7% 11 6.5 | 9% 14 6.0 | 6% 9 5.5 | 6% 9 5.0 | 3% 5 4.5 | 4% 6 4.0 | 4% 6 3.5 | 3% 5 3.0 | 3% 4 2.5 | 0% 0 2.0 | 1% 1 1.8 | 0% 0 1.5 | 0% 0 1.0 | 1% 1 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||