![]() |

| House of Secrets #88 | ||
| DC Comics, 10-11/70 | ||
| Gerry Conway and Marv Wolfman stories | 1st "DC House of Secrets" Bat Logo. | |
| Dick Dillin, Frank Giacoia and | Cynthia from Witching Hour appearance. | |
| Bill Draut art, Neal Adams cover | Grey tone 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 | 147 | 8.04 | 0 0.00% | 0 0.00% | 0 0.0% | 7 4.8% | 24 21.1% | 26 38.8% | 16 49.7% | 18 62% | 11 69% | 3 71% | 12 80% | 9 86% | 8 91% | 2 93% | 0 93% | 4 95% | 2 97% | 2 98% | 1 99% | 2 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 12 | 7.03 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 2 16.7% | 1 25.0% | 1 33.3% | 0 33.3% | 1 41.7% | 1 50% | 1 58% | 3 83% | 0 83% | 1 92% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Restored | 1 | 6.00 | 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% | 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% |
| House of Secrets #88 (1970, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 0 9.8 | 5% 7 9.6 | 16% 24 9.4 | 18% 26 9.2 | 11% 16 9.0 | 12% 18 8.5 | 7% 11 8.0 | 2% 3 7.5 | 8% 12 7.0 | 6% 9 6.5 | 5% 8 6.0 | 1% 2 5.5 | 0% 0 5.0 | 3% 4 4.5 | 1% 2 4.0 | 1% 2 3.5 | 1% 1 3.0 | 1% 2 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 | ||||||||||||||||||||||||