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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 | 2,257 | 8.67 | 0 0.00% | 0 0.00% | 198 8.8% | 376 25.4% | 362 41.5% | 263 53% | 250 64% | 227 74% | 143 81% | 140 87% | 113 92% | 56 94% | 44 96% | 24 97% | 24 98% | 15 99% | 8 99% | 6 100% | 5 100% | 3 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 137 | 8.74 | 0 0.00% | 0 0.00% | 16 11.7% | 31 34.3% | 22 50% | 12 59% | 11 67% | 13 77% | 7 82% | 7 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 | 23 | 9.24 | 0 0.00% | 0 0.00% | 1 4.3% | 3 17.4% | 7 47.8% | 8 83% | 3 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% 198 9.8 | 17% 376 9.6 | 16% 362 9.4 | 12% 263 9.2 | 11% 250 9.0 | 10% 227 8.5 | 6% 143 8.0 | 6% 140 7.5 | 5% 113 7.0 | 2% 56 6.5 | 2% 44 6.0 | 1% 24 5.5 | 1% 24 5.0 | 1% 15 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 September 16, 2025 | ||||||||||||||||||||||||