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| Justice League of America #28 | ||
| DC Comics, 6/64 | ||
| Gardner Fox story | Top, Head Mastermind, Matter Master | |
| Mike Sekowsky & Bernard Sachs art | & Tattooed Man appearance. | |
| Mike Sekowsky & 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 | 204 | 7.60 | 0 0.00% | 0 0.00% | 5 2.5% | 14 9.3% | 14 16.2% | 21 26.5% | 16 34.3% | 21 44.6% | 21 55% | 20 65% | 10 70% | 14 76% | 13 83% | 13 89% | 6 92% | 8 96% | 2 97% | 2 98% | 3 100% | 0 100% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Restored | 5 | 6.82 | 0 0.00% | 0 0.00% | 0 0.0% | 1 20.0% | 0 20.0% | 0 20.0% | 1 40.0% | 0 40.0% | 0 40.0% | 1 60% | 1 80% | 0 80% | 0 80% | 0 80% | 0 80% | 0 80% | 0 80% | 0 80% | 0 80% | 0 80% | 0 80% | 0 80% | 0 80% | 1 100% | 0 100% |
| 1 BOOK | Qualified | 1 | 9.00 | 0 0.00% | 0 0.00% | 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% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Justice League of America #28 (1964, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 2% 5 9.8 | 7% 14 9.6 | 7% 14 9.4 | 10% 21 9.2 | 8% 16 9.0 | 10% 21 8.5 | 10% 21 8.0 | 10% 20 7.5 | 5% 10 7.0 | 7% 14 6.5 | 6% 13 6.0 | 6% 13 5.5 | 3% 6 5.0 | 4% 8 4.5 | 1% 2 4.0 | 1% 2 3.5 | 1% 3 3.0 | 0% 0 2.5 | 0% 1 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 | ||||||||||||||||||||||||