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| Adventures into the Unknown #27 | ||
| American Comics Group, 1/52 | ||
| Al Williamson, Roy Krenkel, Al Camy, | ||
| Charles Sultan and Ogden Whitney art | ||
| Ken Bald 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 | 59 | 6.22 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 2 3.4% | 3 8.5% | 3 13.6% | 3 18.6% | 5 27.1% | 4 33.9% | 8 47.5% | 4 54% | 3 59% | 4 66% | 4 73% | 5 81% | 3 86% | 0 86% | 4 93% | 3 98% | 0 98% | 1 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 3 | 4.00 | 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% | 0 33.3% | 0 33.3% | 1 67% | 0 67% | 0 67% | 0 67% | 0 67% | 1 100% | 0 100% | 0 100% |
| 1 BOOK | Restored | 3 | 6.33 | 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% | 2 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Adventures into the Unknown #27 (1952, American Comics Group) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 0 9.8 | 0% 0 9.6 | 3% 2 9.4 | 5% 3 9.2 | 5% 3 9.0 | 5% 3 8.5 | 8% 5 8.0 | 7% 4 7.5 | 14% 8 7.0 | 7% 4 6.5 | 5% 3 6.0 | 7% 4 5.5 | 7% 4 5.0 | 8% 5 4.5 | 5% 3 4.0 | 0% 0 3.5 | 7% 4 3.0 | 5% 3 2.5 | 0% 0 2.0 | 2% 1 1.8 | 0% 0 1.5 | 0% 0 1.0 | 0% 0 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||