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| X-Men #108 | ||
| Marvel Comics, 12/77 | ||
| Chris Claremont story | John Byrne issues begin. | |
| John Byrne & Terry Austin art | Starjammers appearance. Corsair revealed | |
| Dave Cockrum cover | as the father of Cyclops & Havok. | |
| 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 | 2,305 | 8.66 | 0 0.00% | 0 0.00% | 204 8.9% | 381 25.4% | 366 41.3% | 268 53% | 255 64% | 235 74% | 147 81% | 144 87% | 117 92% | 55 94% | 45 96% | 24 97% | 25 98% | 17 99% | 8 99% | 6 100% | 5 100% | 3 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 138 | 8.74 | 0 0.00% | 0 0.00% | 16 11.6% | 31 34.1% | 22 50% | 12 59% | 12 67% | 13 77% | 6 81% | 8 87% | 5 91% | 4 93% | 4 96% | 1 97% | 2 99% | 0 99% | 1 99% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Qualified | 24 | 9.23 | 0 0.00% | 0 0.00% | 1 4.2% | 3 16.7% | 7 45.8% | 8 79% | 4 96% | 0 96% | 0 96% | 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% |
| 1 BOOK | Restored | 20 | 7.41 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 1 5.0% | 4 25.0% | 2 35.0% | 2 45.0% | 2 55% | 2 65% | 1 70% | 1 75% | 2 85% | 0 85% | 0 85% | 0 85% | 0 85% | 3 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| X-Men #108 (1977, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 9% 204 9.8 | 17% 381 9.6 | 16% 366 9.4 | 12% 268 9.2 | 11% 255 9.0 | 10% 235 8.5 | 6% 147 8.0 | 6% 144 7.5 | 5% 117 7.0 | 2% 55 6.5 | 2% 45 6.0 | 1% 24 5.5 | 1% 25 5.0 | 1% 17 4.5 | 0% 8 4.0 | 0% 6 3.5 | 0% 5 3.0 | 0% 3 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 May 12, 2026 | ||||||||||||||||||||||||