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| Howard the Duck #31 | ||
| Marvel Comics, 5/79 | ||
| Bill Mantlo story | Doctor Bong & Iron Duck appearance. | |
| Gene Colan & Al Milgrom cover & art | Last issue until 1/86 | |
| 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 | 47 | 9.50 | 0 0.00% | 0 0.00% | 26 55% | 9 74% | 5 85% | 1 87% | 0 87% | 3 94% | 2 98% | 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 | Signature | 20 | 8.21 | 0 0.00% | 0 0.00% | 0 0.0% | 1 5.0% | 4 25.0% | 2 35.0% | 3 50% | 1 55% | 1 60% | 3 75% | 1 80% | 3 95% | 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% |
| Howard the Duck #31 (1979, Marvel Comics) CGC Universal Grade Distribution | ||||||||||||||||||||||||
| 0% 0 10 | 0% 0 9.9 | 55% 26 9.8 | 19% 9 9.6 | 11% 5 9.4 | 2% 1 9.2 | 0% 0 9.0 | 6% 3 8.5 | 4% 2 8.0 | 2% 1 7.5 | 0% 0 7.0 | 0% 0 6.5 | 0% 0 6.0 | 0% 0 5.5 | 0% 0 5.0 | 0% 0 4.5 | 0% 0 4.0 | 0% 0 3.5 | 0% 0 3.0 | 0% 0 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 | ||||||||||||||||||||||||