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| Superman #400 | ||
| DC Comics, 10/84 | ||
| Terry Austin, Brian Bolland, Mike Grell, | Howard Chaykin cover. | |
| Michael Wm. Kaluta, Bernie Wrightson, | Anniversary issue. | |
| John Byrne, Steve Ditko & Jack Kirby art | Back cover pin-up by Frank Miller. | |
| 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 | 165 | 9.22 | 0 0.00% | 0 0.00% | 52 31.5% | 46 59% | 24 74% | 7 78% | 11 85% | 7 89% | 7 93% | 2 95% | 1 95% | 3 97% | 0 97% | 1 98% | 2 99% | 2 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 72 | 8.93 | 0 0.00% | 0 0.00% | 11 15.3% | 19 41.7% | 11 57% | 9 69% | 5 76% | 4 82% | 2 85% | 4 90% | 2 93% | 1 94% | 1 96% | 2 99% | 0 99% | 0 99% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| Superman #400 (1984, DC Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 32% 52 9.8 | 28% 46 9.6 | 15% 24 9.4 | 4% 7 9.2 | 7% 11 9.0 | 4% 7 8.5 | 4% 7 8.0 | 1% 2 7.5 | 1% 1 7.0 | 2% 3 6.5 | 0% 0 6.0 | 1% 1 5.5 | 1% 2 5.0 | 1% 2 4.5 | 0% 0 4.0 | 0% 0 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 | ||||||||||||||||||||||||