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| Sub-Mariner #33 | ||
| Marvel Comics, 1/71 | ||
| Roy Thomas story | Doctor Dorcas, Krang and | |
| Sal Buscema and Jim Mooney art | Byrrah appearance. | |
| Sal Buscema and Marie Severin cover | Namor and Dorma get engaged. | |
| 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 | 115 | 8.44 | 0 0.00% | 0 0.00% | 5 4.3% | 17 19.1% | 23 39.1% | 12 49.6% | 16 63% | 9 71% | 7 77% | 5 82% | 4 85% | 3 88% | 5 92% | 2 94% | 1 95% | 1 96% | 4 99% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 3 | 9.10 | 0 0.00% | 0 0.00% | 1 33.3% | 0 33.3% | 0 33.3% | 0 33.3% | 1 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% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Qualified | 2 | 9.40 | 0 0.00% | 0 0.00% | 0 0.0% | 1 50% | 0 50% | 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% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Sub-Mariner #33 (1971, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 4% 5 9.8 | 15% 17 9.6 | 20% 23 9.4 | 10% 12 9.2 | 14% 16 9.0 | 8% 9 8.5 | 6% 7 8.0 | 4% 5 7.5 | 3% 4 7.0 | 3% 3 6.5 | 4% 5 6.0 | 2% 2 5.5 | 1% 1 5.0 | 1% 1 4.5 | 3% 4 4.0 | 1% 1 3.5 | 0% 0 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 | ||||||||||||||||||||||||