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| Superman #233 | ||
| DC Comics, 1/71 | ||
| Denny O'Neil, E. Nelson Bridwell stories | Clark Kent becomes a TV newscaster. | |
| Curt Swan and Murphy Anderson art | All Kryptonite "destroyed". | |
| Neal Adams cover | "World of Krypton" backup stories begin. | |
| 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 | 1,429 | 6.89 | 0 0.00% | 0 0.00% | 4 0.3% | 17 1.5% | 65 6.0% | 72 11.1% | 98 17.9% | 130 27.0% | 134 36.4% | 125 45.1% | 130 54% | 138 64% | 144 74% | 94 81% | 96 87% | 65 92% | 56 96% | 36 98% | 14 99% | 6 100% | 4 100% | 0 100% | 1 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 275 | 6.57 | 0 0.00% | 0 0.00% | 0 0.0% | 1 0.4% | 13 5.1% | 3 6.2% | 18 12.7% | 24 21.5% | 24 30.2% | 27 40.0% | 23 48.4% | 25 57% | 27 67% | 26 77% | 19 84% | 10 87% | 16 93% | 7 96% | 7 98% | 1 99% | 2 99% | 0 99% | 0 99% | 1 100% | 1 100% |
| 1 BOOK | Restored | 16 | 7.23 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 1 6.3% | 1 12.5% | 4 37.5% | 1 43.8% | 1 50% | 2 63% | 0 63% | 0 63% | 0 63% | 2 75% | 3 94% | 0 94% | 0 94% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Qualified | 9 | 6.10 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 2 22.2% | 0 22.2% | 0 22.2% | 0 22.2% | 0 22.2% | 1 33.3% | 0 33.3% | 1 44.4% | 2 67% | 1 78% | 0 78% | 1 89% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Superman #233 (1971, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 4 9.8 | 1% 17 9.6 | 5% 65 9.4 | 5% 72 9.2 | 7% 98 9.0 | 9% 130 8.5 | 9% 134 8.0 | 9% 125 7.5 | 9% 130 7.0 | 10% 138 6.5 | 10% 144 6.0 | 7% 94 5.5 | 7% 96 5.0 | 5% 65 4.5 | 4% 56 4.0 | 3% 36 3.5 | 1% 14 3.0 | 0% 6 2.5 | 0% 4 2.0 | 0% 0 1.8 | 0% 1 1.5 | 0% 0 1.0 | 0% 0 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||