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| Black Cat Comics #21 | ||
| Harvey Publications, 2/50 | ||
| Lee Elias cover and art | Montgomery Clift appearance. | |
| Invisible Scarlett O'Neil backup story. | ||
| 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 | 20 | 7.37 | 0 0.00% | 0 0.00% | 0 0.0% | 1 5.0% | 1 10.0% | 4 30.0% | 3 45.0% | 1 50% | 0 50% | 2 60% | 1 65% | 1 70% | 0 70% | 1 75% | 2 85% | 1 90% | 1 95% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Qualified | 1 | 3.50 | 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% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Black Cat Comics #21 (1950, Harvey Publications) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 0 9.8 | 5% 1 9.6 | 5% 1 9.4 | 20% 4 9.2 | 15% 3 9.0 | 5% 1 8.5 | 0% 0 8.0 | 10% 2 7.5 | 5% 1 7.0 | 5% 1 6.5 | 0% 0 6.0 | 5% 1 5.5 | 10% 2 5.0 | 5% 1 4.5 | 5% 1 4.0 | 5% 1 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 | ||||||||||||||||||||||||