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| Chamber of Darkness #1 | ||
| Marvel Comics, 10/69 | ||
| Lee, O'Neil and G. Friedrich stories | ||
| John Buscema, Tom Sutton and | ||
| Don Heck art, John 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 | 298 | 8.20 | 0 0.00% | 0 0.00% | 9 3.0% | 34 14.4% | 51 31.5% | 37 44.0% | 27 53% | 31 63% | 22 71% | 20 78% | 16 83% | 12 87% | 8 90% | 8 92% | 4 94% | 6 96% | 7 98% | 6 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 10 | 8.50 | 0 0.00% | 0 0.00% | 0 0.0% | 1 10.0% | 1 20.0% | 0 20.0% | 2 40.0% | 3 70% | 1 80% | 1 90% | 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% |
| 1 BOOK | Restored | 3 | 5.17 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 1 33.3% | 0 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% |
| 1 BOOK | Qualified | 2 | 8.95 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 1 50% | 0 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% |
| Chamber of Darkness #1 (1969, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 3% 9 9.8 | 11% 34 9.6 | 17% 51 9.4 | 12% 37 9.2 | 9% 27 9.0 | 10% 31 8.5 | 7% 22 8.0 | 7% 20 7.5 | 5% 16 7.0 | 4% 12 6.5 | 3% 8 6.0 | 3% 8 5.5 | 1% 4 5.0 | 2% 6 4.5 | 2% 7 4.0 | 2% 6 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 | ||||||||||||||||||||||||