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| Showcase #7 | ||
| DC Comics, 3-4/57 | ||
| Dave Wood story | Challengers of the Unknown. | |
| Jack Kirby cover and art | 1st appearance of June Robbins. | |
| ULTIVAC appearance. Robot 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 | 120 | 4.69 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 1 0.8% | 1 1.7% | 2 3.3% | 3 5.8% | 3 8.3% | 1 9.2% | 3 11.7% | 11 20.8% | 8 27.5% | 7 33.3% | 8 40.0% | 18 55% | 20 72% | 7 78% | 9 85% | 8 92% | 6 97% | 1 98% | 2 99% | 1 100% | 0 100% |
| 1 BOOK | Restored | 8 | 4.88 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 1 12.5% | 0 12.5% | 1 25.0% | 1 37.5% | 0 37.5% | 0 37.5% | 1 50% | 0 50% | 1 63% | 1 75% | 0 75% | 2 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Showcase #7 (1957, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 0 9.8 | 0% 0 9.6 | 1% 1 9.4 | 1% 1 9.2 | 2% 2 9.0 | 3% 3 8.5 | 3% 3 8.0 | 1% 1 7.5 | 3% 3 7.0 | 9% 11 6.5 | 7% 8 6.0 | 6% 7 5.5 | 7% 8 5.0 | 15% 18 4.5 | 17% 20 4.0 | 6% 7 3.5 | 8% 9 3.0 | 7% 8 2.5 | 5% 6 2.0 | 1% 1 1.8 | 2% 2 1.5 | 1% 1 1.0 | 0% 0 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||