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| Wolverine #21 | ||
| Marvel Comics, 2/90 | ||
| Archie Goodwin story | Roughouse appearance. | |
| John Byrne & Klaus Janson art | X-Men cameo. | |
| John Byrne 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 | 191 | 9.57 | 0 0.00% | 0 0.00% | 108 57% | 40 77% | 14 85% | 15 93% | 5 95% | 7 99% | 1 99% | 0 99% | 0 99% | 0 99% | 0 99% | 0 99% | 0 99% | 0 99% | 0 99% | 0 99% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 9 | 9.49 | 0 0.00% | 0 0.00% | 4 44.4% | 3 78% | 1 89% | 0 89% | 0 89% | 0 89% | 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% |
| Wolverine #21 (1990, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 57% 108 9.8 | 21% 40 9.6 | 7% 14 9.4 | 8% 15 9.2 | 3% 5 9.0 | 4% 7 8.5 | 1% 1 8.0 | 0% 0 7.5 | 0% 0 7.0 | 0% 0 6.5 | 0% 0 6.0 | 0% 0 5.5 | 0% 0 5.0 | 0% 0 4.5 | 0% 0 4.0 | 0% 0 3.5 | 1% 1 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 | ||||||||||||||||||||||||