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| Action Comics #342 | ||
| DC Comics, 10/66 | ||
| Jim Shooter and Otto Binder stories | Brainiac and Grax appearance. | |
| Wayne Boring and Jim Mooney art | Atomic explosion panel. | |
| Curt Swan and 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 | 68 | 8.09 | 0 0.00% | 0 0.00% | 3 4.4% | 10 19.1% | 9 32.4% | 9 45.6% | 6 54% | 9 68% | 3 72% | 3 76% | 2 79% | 1 81% | 2 84% | 1 85% | 2 88% | 5 96% | 1 97% | 0 97% | 2 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 2 | 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% | 1 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% | 0 100% |
| Action Comics #342 (1966, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 4% 3 9.8 | 15% 10 9.6 | 13% 9 9.4 | 13% 9 9.2 | 9% 6 9.0 | 13% 9 8.5 | 4% 3 8.0 | 4% 3 7.5 | 3% 2 7.0 | 1% 1 6.5 | 3% 2 6.0 | 1% 1 5.5 | 3% 2 5.0 | 7% 5 4.5 | 1% 1 4.0 | 0% 0 3.5 | 3% 2 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 | ||||||||||||||||||||||||