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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 | 905 | 7.74 | 0 0.00% | 0 0.00% | 24 2.7% | 35 6.5% | 78 15.1% | 78 23.8% | 111 36.0% | 96 46.6% | 100 58% | 84 67% | 78 76% | 62 82% | 40 87% | 28 90% | 36 94% | 26 97% | 13 98% | 7 99% | 3 99% | 1 99% | 0 99% | 2 100% | 1 100% | 2 100% | 0 100% |
| 1 BOOK | Signature | 164 | 7.46 | 0 0.00% | 0 0.00% | 2 1.2% | 3 3.0% | 8 7.9% | 16 17.7% | 17 28.0% | 24 42.7% | 15 52% | 12 59% | 20 71% | 8 76% | 12 84% | 3 85% | 5 88% | 12 96% | 5 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% 35 9.6 | 9% 78 9.4 | 9% 78 9.2 | 12% 111 9.0 | 11% 96 8.5 | 11% 100 8.0 | 9% 84 7.5 | 9% 78 7.0 | 7% 62 6.5 | 4% 40 6.0 | 3% 28 5.5 | 4% 36 5.0 | 3% 26 4.5 | 1% 13 4.0 | 1% 7 3.5 | 0% 3 3.0 | 0% 1 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 September 16, 2025 | ||||||||||||||||||||||||