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| Amazing Spider-Man #306 | ||
| Marvel Comics, 10/88 | ||
| David Michelinie story | Black Cat, Humbug & | |
| Todd McFarlane cover & art | Chameleon appearance. | |
| Action Comics #1 cover homage. | ||
| 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 | 2,129 | 9.32 | 0 0.00% | 2 0.09% | 616 29.0% | 594 57% | 329 72% | 193 81% | 134 88% | 111 93% | 55 96% | 31 97% | 26 98% | 17 99% | 5 99% | 7 100% | 3 100% | 1 100% | 3 100% | 0 100% | 1 100% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Signature | 301 | 9.37 | 0 0.00% | 0 0.00% | 87 28.9% | 87 58% | 49 74% | 33 85% | 17 91% | 10 94% | 8 97% | 4 98% | 2 99% | 2 99% | 1 100% | 0 100% | 0 100% | 1 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% | 0 100% |
| 1 BOOK | Restored | 5 | 9.16 | 0 0.00% | 0 0.00% | 1 20.0% | 1 40.0% | 1 60% | 0 60% | 1 80% | 0 80% | 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% | 0 100% |
| 1 BOOK | Qualified | 3 | 7.90 | 0 0.00% | 0 0.00% | 0 0.0% | 0 0.0% | 0 0.0% | 1 33.3% | 0 33.3% | 0 33.3% | 1 67% | 0 67% | 0 67% | 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% |
| Amazing Spider-Man #306 (1988, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0.1% 2 9.9 | 29% 616 9.8 | 28% 594 9.6 | 15% 329 9.4 | 9% 193 9.2 | 6% 134 9.0 | 5% 111 8.5 | 3% 55 8.0 | 1% 31 7.5 | 1% 26 7.0 | 1% 17 6.5 | 0% 5 6.0 | 0% 7 5.5 | 0% 3 5.0 | 0% 1 4.5 | 0% 3 4.0 | 0% 0 3.5 | 0% 1 3.0 | 0% 1 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 | ||||||||||||||||||||||||