![]() |

| House of Mystery #191 | ||
| DC Comics, 3-4/71 | ||
| Len Wein & Jack Oleck stories | ||
| Wrightson, Draut & DeZuniga art | ||
| Neal Adams 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 | 80 | 8.46 | 0 0.00% | 0 0.00% | 3 3.8% | 5 10.0% | 20 35.0% | 11 48.8% | 11 63% | 5 69% | 2 71% | 6 79% | 5 85% | 5 91% | 3 95% | 4 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 5 | 7.90 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 2 40.0% | 1 60% | 0 60% | 0 60% | 0 60% | 1 80% | 0 80% | 0 80% | 0 80% | 0 80% | 0 80% | 0 80% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Restored | 1 | 9.40 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 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% | 0 100% | 0 100% | 0 100% |
| House of Mystery #191 (1971, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 4% 3 9.8 | 6% 5 9.6 | 25% 20 9.4 | 14% 11 9.2 | 14% 11 9.0 | 6% 5 8.5 | 3% 2 8.0 | 8% 6 7.5 | 6% 5 7.0 | 6% 5 6.5 | 4% 3 6.0 | 5% 4 5.5 | 0% 0 5.0 | 0% 0 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 | ||||||||||||||||||||||||