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| G.I. Joe, A Real American Hero #21 | ||
| Marvel Comics, 3/84 | ||
| Larry Hama story | 1st appearance of Storm Shadow. | |
| Larry Hama & Steve Leialoha art | Silent issue. | |
| Ed Hannigan & Klaus Janson 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 | 3,405 | 8.40 | 0 0.00% | 1 0.03% | 201 5.9% | 574 22.8% | 469 36.6% | 421 48.9% | 320 58% | 304 67% | 276 75% | 184 81% | 170 86% | 102 89% | 111 92% | 70 94% | 77 96% | 45 98% | 36 99% | 19 99% | 15 100% | 4 100% | 4 100% | 0 100% | 0 100% | 0 100% | 2 100% |
| 1 BOOK | Signature | 354 | 8.38 | 0 0.00% | 0 0.00% | 15 4.2% | 61 21.5% | 51 35.9% | 45 48.6% | 31 57% | 36 68% | 22 74% | 22 80% | 25 87% | 12 90% | 8 93% | 5 94% | 7 96% | 3 97% | 7 99% | 1 99% | 1 99% | 0 99% | 2 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Restored | 14 | 8.09 | 0 0.00% | 0 0.00% | 0 0.0% | 2 14.3% | 2 28.6% | 1 35.7% | 1 42.9% | 4 71% | 0 71% | 0 71% | 1 79% | 1 86% | 1 93% | 0 93% | 0 93% | 0 93% | 0 93% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Qualified | 13 | 7.76 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 2 15.4% | 2 30.8% | 1 38.5% | 1 46.2% | 0 46.2% | 5 85% | 2 100% | 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% |
| G.I. Joe, A Real American Hero #21 (1984, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 1 9.9 | 6% 201 9.8 | 17% 574 9.6 | 14% 469 9.4 | 12% 421 9.2 | 9% 320 9.0 | 9% 304 8.5 | 8% 276 8.0 | 5% 184 7.5 | 5% 170 7.0 | 3% 102 6.5 | 3% 111 6.0 | 2% 70 5.5 | 2% 77 5.0 | 1% 45 4.5 | 1% 36 4.0 | 1% 19 3.5 | 0% 15 3.0 | 0% 4 2.5 | 0% 4 2.0 | 0% 0 1.8 | 0% 0 1.5 | 0% 0 1.0 | 0% 2 0.5 |
| cgcdata.com, last updated November 10, 2026 | ||||||||||||||||||||||||