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| Sub-Mariner #13 | ||
| Marvel Comics, 5/69 | ||
| Roy Thomas story | Serpent Crown appearance. | |
| Marie Severin and Joe Sinnott | ||
| cover and art | ||
| 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 | 234 | 8.20 | 0 0.00% | 0 0.00% | 5 2.1% | 21 11.1% | 38 27.4% | 25 38.0% | 25 48.7% | 29 61% | 29 74% | 13 79% | 12 84% | 11 89% | 8 92% | 5 94% | 5 97% | 2 97% | 1 98% | 1 98% | 2 99% | 0 99% | 1 100% | 0 100% | 0 100% | 0 100% | 1 100% |
| 1 BOOK | Signature | 6 | 7.00 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 2 33.3% | 2 67% | 0 67% | 0 67% | 1 83% | 0 83% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Restored | 3 | 7.90 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 1 33.3% | 0 33.3% | 1 67% | 0 67% | 0 67% | 0 67% | 0 67% | 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% |
| Sub-Mariner #13 (1969, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 2% 5 9.8 | 9% 21 9.6 | 16% 38 9.4 | 11% 25 9.2 | 11% 25 9.0 | 12% 29 8.5 | 12% 29 8.0 | 6% 13 7.5 | 5% 12 7.0 | 5% 11 6.5 | 3% 8 6.0 | 2% 5 5.5 | 2% 5 5.0 | 1% 2 4.5 | 0% 1 4.0 | 0% 1 3.5 | 1% 2 3.0 | 0% 0 2.5 | 0% 1 2.0 | 0% 0 1.8 | 0% 0 1.5 | 0% 0 1.0 | 0% 1 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||