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| Action Comics #339 | ||
| DC Comics, 7/66 | ||
| Edmond Hamilton & Jim Shooter stories | Superman of 2966, Brainiac & | |
| Curt Swan, George Klein & Jim Mooney art | Muto appearance. | |
| Curt Swan & George Klein 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 | 53 | 7.57 | 0 0.00% | 0 0.00% | 1 1.9% | 2 5.7% | 8 20.8% | 6 32.1% | 5 41.5% | 6 53% | 4 60% | 3 66% | 2 70% | 4 77% | 4 85% | 0 85% | 0 85% | 3 91% | 1 92% | 1 94% | 2 98% | 0 98% | 0 98% | 0 98% | 0 98% | 0 98% | 1 100% |
| 1 BOOK | Signature | 7 | 6.50 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 1 14.3% | 0 14.3% | 0 14.3% | 1 28.6% | 2 57% | 1 71% | 0 71% | 1 86% | 0 86% | 0 86% | 0 86% | 0 86% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Qualified | 4 | 6.38 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 2 50% | 0 50% | 0 50% | 0 50% | 0 50% | 0 50% | 0 50% | 1 75% | 0 75% | 0 75% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Action Comics #339 (1966, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 2% 1 9.8 | 4% 2 9.6 | 15% 8 9.4 | 11% 6 9.2 | 9% 5 9.0 | 11% 6 8.5 | 8% 4 8.0 | 6% 3 7.5 | 4% 2 7.0 | 8% 4 6.5 | 8% 4 6.0 | 0% 0 5.5 | 0% 0 5.0 | 6% 3 4.5 | 2% 1 4.0 | 2% 1 3.5 | 4% 2 3.0 | 0% 0 2.5 | 0% 0 2.0 | 0% 0 1.8 | 0% 0 1.5 | 0% 0 1.0 | 2% 1 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||