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| Superman #21 | ||
| DC Comics, 3-4/43 | ||
| Jerry Siegel story, Joe Shuster, | ||
| Ed Dobrotka, Leo Nowak, John Sikela and | ||
| George Roussos art, Jack Burnley 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 | 119 | 4.76 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 1 0.8% | 4 4.2% | 0 4.2% | 5 8.4% | 9 16.0% | 8 22.7% | 11 31.9% | 4 35.3% | 6 40.3% | 14 52% | 8 59% | 6 64% | 8 71% | 9 78% | 9 86% | 4 89% | 1 90% | 5 94% | 1 95% | 6 100% |
| 1 BOOK | Restored | 20 | 4.52 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 0 0.0% | 1 5.0% | 1 10.0% | 2 20.0% | 0 20.0% | 1 25.0% | 1 30.0% | 1 35.0% | 2 45.0% | 3 60% | 1 65% | 0 65% | 0 65% | 3 80% | 1 85% | 1 90% | 1 95% | 0 95% | 1 100% |
| 1 BOOK | Qualified | 2 | 4.50 | 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% | 1 50% | 0 50% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Superman #21 (1943, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 0% 0 9.8 | 0% 0 9.6 | 0% 0 9.4 | 1% 1 9.2 | 3% 4 9.0 | 0% 0 8.5 | 4% 5 8.0 | 8% 9 7.5 | 7% 8 7.0 | 9% 11 6.5 | 3% 4 6.0 | 5% 6 5.5 | 12% 14 5.0 | 7% 8 4.5 | 5% 6 4.0 | 7% 8 3.5 | 8% 9 3.0 | 8% 9 2.5 | 3% 4 2.0 | 1% 1 1.8 | 4% 5 1.5 | 1% 1 1.0 | 5% 6 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||