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| X-Men #51 | ||
| Marvel Comics, 12/68 | ||
| Arnold Drake story | 1st appearance of Erik the Red (cameo). | |
| Jim Steranko and John Tartaglione art | Magneto, Mesmero and Polaris appearance. | |
| Jim Steranko cover | Origin of the Beast. | |
| 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 | 934 | 7.71 | 0 0.00% | 0 0.00% | 24 2.6% | 38 6.6% | 82 15.4% | 80 24.0% | 111 35.9% | 96 46.1% | 100 57% | 91 67% | 79 75% | 63 82% | 41 86% | 30 89% | 39 94% | 26 96% | 17 98% | 7 99% | 3 99% | 2 99% | 0 99% | 2 100% | 1 100% | 2 100% | 0 100% |
| 1 BOOK | Signature | 168 | 7.45 | 0 0.00% | 0 0.00% | 2 1.2% | 3 3.0% | 8 7.7% | 16 17.3% | 17 27.4% | 25 42.3% | 16 52% | 13 60% | 20 71% | 8 76% | 12 83% | 3 85% | 5 88% | 12 95% | 6 99% | 1 99% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Restored | 15 | 7.37 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 1 6.7% | 1 13.3% | 1 20.0% | 4 46.7% | 0 46.7% | 0 46.7% | 3 67% | 2 80% | 0 80% | 1 87% | 1 93% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Qualified | 7 | 8.19 | 0 0.00% | 0 0.00% | 0 0.0% | 1 14.3% | 0 14.3% | 1 28.6% | 3 71% | 0 71% | 0 71% | 1 86% | 0 86% | 0 86% | 0 86% | 0 86% | 0 86% | 0 86% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| X-Men #51 (1968, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 3% 24 9.8 | 4% 38 9.6 | 9% 82 9.4 | 9% 80 9.2 | 12% 111 9.0 | 10% 96 8.5 | 11% 100 8.0 | 10% 91 7.5 | 8% 79 7.0 | 7% 63 6.5 | 4% 41 6.0 | 3% 30 5.5 | 4% 39 5.0 | 3% 26 4.5 | 2% 17 4.0 | 1% 7 3.5 | 0% 3 3.0 | 0% 2 2.5 | 0% 0 2.0 | 0% 2 1.8 | 0% 1 1.5 | 0% 2 1.0 | 0% 0 0.5 |
| cgcdata.com, last updated May 12, 2026 | ||||||||||||||||||||||||