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| Sub-Mariner #63 | ||
| Marvel Comics, 7/73 | ||
| Bill Everett and Steve Gerber stories | Doctor Hydro appearance. | |
| Syd Shores and Howard Chaykin art | Tales of Atlantis backup story. | |
| John Romita and Joe Sinnott 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 | 99 | 9.11 | 0 0.00% | 0 0.00% | 17 17.2% | 30 47.5% | 19 67% | 5 72% | 9 81% | 7 88% | 5 93% | 1 94% | 1 95% | 2 97% | 0 97% | 0 97% | 2 99% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 6 | 8.67 | 0 0.00% | 0 0.00% | 1 16.7% | 1 33.3% | 1 50% | 1 67% | 0 67% | 0 67% | 1 83% | 0 83% | 0 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% | 0 100% | 0 100% |
| Sub-Mariner #63 (1973, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 17% 17 9.8 | 30% 30 9.6 | 19% 19 9.4 | 5% 5 9.2 | 9% 9 9.0 | 7% 7 8.5 | 5% 5 8.0 | 1% 1 7.5 | 1% 1 7.0 | 2% 2 6.5 | 0% 0 6.0 | 0% 0 5.5 | 2% 2 5.0 | 1% 1 4.5 | 0% 0 4.0 | 0% 0 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 | ||||||||||||||||||||||||