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| Atom #21 | ||
| DC Comics, 10-11/65 | ||
| Gardner Fox stories | Time Pool backup story. | |
| Gil Kane and Sid Greene art | ||
| Gil Kane and Murphy Anderson 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 | 56 | 7.86 | 0 0.00% | 0 0.00% | 2 3.6% | 9 19.6% | 10 37.5% | 5 46.4% | 5 55% | 7 68% | 2 71% | 3 77% | 0 77% | 0 77% | 2 80% | 2 84% | 1 86% | 0 86% | 2 89% | 1 91% | 3 96% | 0 96% | 1 98% | 0 98% | 0 98% | 0 98% | 1 100% |
| 1 BOOK | Restored | 1 | 5.00 | 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% | 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% |
| Atom #21 (1965, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 4% 2 9.8 | 16% 9 9.6 | 18% 10 9.4 | 9% 5 9.2 | 9% 5 9.0 | 13% 7 8.5 | 4% 2 8.0 | 5% 3 7.5 | 0% 0 7.0 | 0% 0 6.5 | 4% 2 6.0 | 4% 2 5.5 | 2% 1 5.0 | 0% 0 4.5 | 4% 2 4.0 | 2% 1 3.5 | 5% 3 3.0 | 0% 0 2.5 | 2% 1 2.0 | 0% 0 1.8 | 0% 0 1.5 | 0% 0 1.0 | 2% 1 0.5 |
| cgcdata.com, last updated September 16, 2025 | ||||||||||||||||||||||||