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| House of Mystery #174 | ||
| DC Comics, 5-6/68 | ||
| Joe Orlando and George Roussos cover | Mystery format begins. | |
| Full page Sergio Aragon?s cartoon. | ||
| 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 | 291 | 7.32 | 0 0.00% | 0 0.00% | 2 0.7% | 11 4.5% | 15 9.6% | 22 17.2% | 30 27.5% | 22 35.1% | 25 43.6% | 33 55% | 35 67% | 24 75% | 20 82% | 14 87% | 17 93% | 5 95% | 5 96% | 4 98% | 3 99% | 2 99% | 1 100% | 0 100% | 0 100% | 0 100% | 1 100% |
| 1 BOOK | Restored | 7 | 7.94 | 0 0.00% | 0 0.00% | 0 0.0% | 1 14.3% | 0 14.3% | 0 14.3% | 0 14.3% | 2 42.9% | 1 57% | 0 57% | 3 100% | 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 | Qualified | 5 | 7.60 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 4 80% | 0 80% | 0 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 | Signature | 1 | 2.50 | 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% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| House of Mystery #174 (1968, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 1% 2 9.8 | 4% 11 9.6 | 5% 15 9.4 | 8% 22 9.2 | 10% 30 9.0 | 8% 22 8.5 | 9% 25 8.0 | 11% 33 7.5 | 12% 35 7.0 | 8% 24 6.5 | 7% 20 6.0 | 5% 14 5.5 | 6% 17 5.0 | 2% 5 4.5 | 2% 5 4.0 | 1% 4 3.5 | 1% 3 3.0 | 1% 2 2.5 | 0% 1 2.0 | 0% 0 1.8 | 0% 0 1.5 | 0% 0 1.0 | 0% 1 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||