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| Sub-Mariner #4 | ||
| Marvel Comics, 8/68 | ||
| Roy Thomas story | Attuma appearance. | |
| John Buscema and Frank Giacoia art | ||
| John Buscema 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 | 380 | 7.72 | 0 0.00% | 0 0.00% | 4 1.1% | 18 5.8% | 35 15.0% | 46 27.1% | 46 39.2% | 44 51% | 29 58% | 32 67% | 28 74% | 25 81% | 20 86% | 13 89% | 10 92% | 9 94% | 6 96% | 9 98% | 4 99% | 0 99% | 1 100% | 0 100% | 0 100% | 1 100% | 0 100% |
| 1 BOOK | Signature | 13 | 8.11 | 0 0.00% | 0 0.00% | 0 0.0% | 1 7.7% | 1 15.4% | 2 30.8% | 1 38.5% | 3 62% | 1 69% | 0 69% | 0 69% | 3 92% | 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% |
| 1 BOOK | Restored | 8 | 7.59 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 1 12.5% | 3 50% | 2 75% | 0 75% | 0 75% | 0 75% | 0 75% | 0 75% | 0 75% | 1 88% | 0 88% | 0 88% | 0 88% | 0 88% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Sub-Mariner #4 (1968, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 1% 4 9.8 | 5% 18 9.6 | 9% 35 9.4 | 12% 46 9.2 | 12% 46 9.0 | 12% 44 8.5 | 8% 29 8.0 | 8% 32 7.5 | 7% 28 7.0 | 7% 25 6.5 | 5% 20 6.0 | 3% 13 5.5 | 3% 10 5.0 | 2% 9 4.5 | 2% 6 4.0 | 2% 9 3.5 | 1% 4 3.0 | 0% 0 2.5 | 0% 1 2.0 | 0% 0 1.8 | 0% 0 1.5 | 0% 1 1.0 | 0% 0 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||