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| Sub-Mariner #66 | ||
| Marvel Comics, 10/73 | ||
| Steve Gerber story, Don Perlin, | Last Tales of Atlantis. | |
| Don Heck and Jim Mooney art | Orka appearance. | |
| Kane, Esposito and Romita 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 | 94 | 8.87 | 0 0.00% | 0 0.00% | 11 11.7% | 22 35.1% | 20 56% | 10 67% | 5 72% | 8 81% | 5 86% | 2 88% | 2 90% | 4 95% | 2 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 | 3 | 8.93 | 0 0.00% | 0 0.00% | 0 0.0% | 1 33.3% | 0 33.3% | 1 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% | 0 100% | 0 100% | 0 100% | 0 100% |
| Sub-Mariner #66 (1973, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 12% 11 9.8 | 23% 22 9.6 | 21% 20 9.4 | 11% 10 9.2 | 5% 5 9.0 | 9% 8 8.5 | 5% 5 8.0 | 2% 2 7.5 | 2% 2 7.0 | 4% 4 6.5 | 2% 2 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 | ||||||||||||||||||||||||